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Code Issues Projects Releases Wiki Activity

Sort out statics in Database. (#3774)

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- Moved `Standard.Database.connect` into `Standard.Database.Database.connect`, so can now just `from Standard.Database import ...`.
- Removed all `Dubious constructor export`s.
- Switched to using `project` for internal imports.
- Moved to using `Value` for private constructors and not re-exporting.
- Export types not modules from `Standard.Database`.
- Broke up `IR` into separate files (Context, Expression, From_Spec, Internal_Column, Join_Kind, Query).
- No longer use `IR.` instead via specific types.
- Broke up `SQL` into separate files (SQL_Type and SQL_Statement).

Additionally;
- Standard.Table: Moved `storage_types` into `Storage`.
- Standard.Table: Switched to using `project` for internal imports.
- Standard.Table.Excel: Renamed modules `Range` to `Excel_Range` and `Section` to `Excel_Section`.
- `Standard.Visualisation`: Switched to using `project` for internal imports.
- `Standard.Visualisation`: Moved to using `Value` for private constructors and not re-exporting.

# Important Notes
- Have not cleared up the `Errors` yet.
- Have not switched to type pattern matching.
This commit is contained in:
James Dunkerley 2022-10-07 12:32:00 +01:00 committed by GitHub
parent 841b2e6e7a
commit 9301f2dcc5
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79 changed files with 1232 additions and 1380 deletions
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6
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/Client_Certificate.enso
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@ -1,9 +1,5 @@
from Standard.Base import all
# TODO Dubious constructor export
from project.Connection.Client_Certificate.Client_Certificate import all
from project.Connection.Client_Certificate.Client_Certificate export all
type Client_Certificate
## Creates a new Client_Certificate object.
@ -11,7 +7,7 @@ type Client_Certificate
- cert_file: path to the client certificate file.
- key_file: path to the client key file.
- key_password: password for the client key file.
Client_Certificate_Data cert_file:(File|Text) key_file:(File|Text) (key_password:Text='')
Value cert_file:(File|Text) key_file:(File|Text) (key_password:Text='')
## PRIVATE
Creates the JDBC properties for the client certificate.

50
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/Connection.enso
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@ -1,25 +1,23 @@
from Standard.Base import all
import Standard.Database.Internal.IR
import Standard.Database.Data.SQL
import Standard.Database.Data.SQL_Query
import Standard.Database.Data.Table as Database_Table
import Standard.Table.Data.Table as Materialized_Table
from Standard.Table import Column_Selector, Column_Name_Mapping
import Standard.Table.Data.Table.Table as Materialized_Table
from Standard.Database.Data.SQL import SQL_Type, Statement, Statement_Data
from Standard.Database.Internal.JDBC_Connection import create_table_statement, handle_sql_errors
from Standard.Database.Internal.Result_Set import read_column, result_set_to_table
from Standard.Database.Errors import SQL_Error
import project.Data.SQL_Query.SQL_Query
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Data.Table as Database_Table
import project.Internal.IR.Context.Context
import project.Internal.IR.Expression.Expression
import project.Internal.IR.Query.Query
from project.Internal.Result_Set import read_column, result_set_to_table
from project.Internal.JDBC_Connection import create_table_statement, handle_sql_errors
from project.Errors import SQL_Error
polyglot java import java.lang.UnsupportedOperationException
polyglot java import java.util.UUID
# TODO Dubious constructor export
from project.Connection.Connection.Connection import all
from project.Connection.Connection.Connection export all
type Connection
## PRIVATE
@ -29,7 +27,7 @@ type Connection
- jdbc_connection: the resource managing the underlying JDBC
connection.
- dialect: the dialect associated with the database we are connected to.
Connection_Data jdbc_connection dialect
Value jdbc_connection dialect
## Closes the connection releasing the underlying database resources
immediately instead of waiting for them to be automatically released.
@ -94,7 +92,7 @@ type Connection
- schema: The schema name to search in (defaults to current schema).
- types: The table types to search for. The list of possible values can be obtained using the `table_types` method.
- all_fields: Return all the fields in the metadata table.
tables : Text -> Text -> Text -> Vector -> Boolean -> Materialized_Table.Table
tables : Text -> Text -> Text -> Vector -> Boolean -> Materialized_Table
tables self name_like=Nothing database=self.database schema=self.schema types=Nothing all_fields=False =
types_array = if types.is_nothing then Nothing else types.to_array
name_map = Map.from_vector [["TABLE_CAT", "Database"], ["TABLE_SCHEM", "Schema"], ["TABLE_NAME", "Name"], ["TABLE_TYPE", "Type"], ["REMARKS", "Description"], ["TYPE_CAT", "Type Database"], ["TYPE_SCHEM", "Type Schema"], ["TYPE_NAME", "Type Name"]]
@ -121,11 +119,11 @@ type Connection
SQL_Query.Raw_SQL raw_sql ->
columns = self.jdbc_connection.fetch_columns raw_sql
name = if alias == "" then (UUID.randomUUID.to_text) else alias
ctx = IR.context_for_query raw_sql name
ctx = Context.for_query raw_sql name
Database_Table.make_table self name columns ctx
SQL_Query.Table_Name name ->
ctx = IR.context_for_table name (if alias == "" then name else alias)
columns = self.jdbc_connection.fetch_columns (self.dialect.generate_sql (IR.Select_All ctx))
ctx = Context.for_table name (if alias == "" then name else alias)
columns = self.jdbc_connection.fetch_columns (self.dialect.generate_sql (Query.Select_All ctx))
Database_Table.make_table self name columns ctx
## Execute the query and load the results into memory as a Table.
@ -134,13 +132,13 @@ type Connection
- query: name of the table or sql statement to query.
If supplied as `Text`, the name is checked against the `tables` list to determine if it is a table or a query.
- limit: the maximum number of rows to return.
read : Text | SQL_Query -> Text -> Integer | Nothing -> Materialized_Table.Table
read : Text | SQL_Query -> Text -> Integer | Nothing -> Materialized_Table
read self query limit=Nothing =
self.query query . read max_rows=limit
## PRIVATE
Internal read function for a statement with optional types.
read_statement : Statement -> (Nothing | Vector SQL_Type) -> Materialized_Table.Table
read_statement : SQL_Statement -> (Nothing | Vector SQL_Type) -> Materialized_Table
read_statement self statement expected_types=Nothing =
self.jdbc_connection.with_prepared_statement statement stmt->
result_set_to_table stmt.executeQuery expected_types
@ -152,9 +150,9 @@ type Connection
returns 0 for other types of queries (like creating or altering tables).
Arguments:
- query: either raw SQL code as Text or an instance of SQL.Statement
- query: either raw SQL code as Text or an instance of SQL_Statement
representing the query to execute.
execute_update : Text | SQL.Statement -> Integer
execute_update : Text | SQL_Statement -> Integer
execute_update self query =
self.jdbc_connection.with_prepared_statement query stmt->
Panic.catch UnsupportedOperationException stmt.executeLargeUpdate _->
@ -177,15 +175,15 @@ type Connection
usually not be visible to other connections.
- batch_size: Specifies how many rows should be uploaded in a single
batch.
upload_table : Text -> Materialized_Table.Table -> Boolean -> Integer -> Database_Table.Table
upload_table : Text -> Materialized_Table -> Boolean -> Integer -> Database_Table.Table
upload_table self name table temporary=True batch_size=1000 = Panic.recover Illegal_State_Error_Data <|
create_sql = create_table_statement name table temporary
create_table = self.execute_update create_sql
db_table = if create_table.is_error then create_table else self.query (SQL_Query.Table_Name name)
if db_table.is_error.not then
pairs = db_table.internal_columns.map col->[col.name, IR.Constant col.sql_type Nothing]
insert_query = self.dialect.generate_sql <| IR.Insert name pairs
pairs = db_table.internal_columns.map col->[col.name, Expression.Constant col.sql_type Nothing]
insert_query = self.dialect.generate_sql <| Query.Insert name pairs
insert_template = insert_query.prepare.first
self.jdbc_connection.load_table insert_template db_table table batch_size

5
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/Connection_Options.enso
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@ -1,12 +1,9 @@
from Standard.Base import all
# TODO Dubious constructor export
from project.Connection.Connection_Options.Connection_Options import all
from project.Connection.Connection_Options.Connection_Options export all
type Connection_Options
## Hold a set of key value pairs used to configure the connection.
Connection_Options_Data options:Vector=[]
Value options:Vector=[]
## Merge the base set of options with the overrides in this object.
merge : Vector -> Vector

4
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/Credentials.enso
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@ -1,9 +1,5 @@
from Standard.Base import all
# TODO Dubious constructor export
from project.Connection.Credentials.Credentials import all
from project.Connection.Credentials.Credentials export all
type Credentials
## Simple username and password type.
Username_And_Password username:Text password:Text

15
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/Database.enso
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@ -1,13 +1,12 @@
from Standard.Base import all
from Standard.Database.Connection.Connection_Options import Connection_Options, Connection_Options_Data
import project.Connection.Connection_Options.Connection_Options
import project.Connection.Postgres_Options.Postgres_Options
import project.Connection.SQLite_Options.SQLite_Options
import project.Connection.Redshift_Options.Redshift_Options
import project.Connection.Connection.Connection
from Standard.Database.Connection.Postgres_Options import Postgres_Options
from Standard.Database.Connection.SQLite_Options import SQLite_Options
from Standard.Database.Connection.Redshift_Options import Redshift_Options
from Standard.Database.Connection.Connection import Connection
from Standard.Database.Errors import SQL_Error
from project.Errors import SQL_Error
## UNSTABLE
@ -17,5 +16,5 @@ from Standard.Database.Errors import SQL_Error
- details: Connection_Details to use to connect.
- options: Any overriding options to use.
connect : (Postgres_Options|SQLite_Options|Redshift_Options) -> Connection_Options -> Connection ! SQL_Error
connect details options=Connection_Options_Data =
connect details options=Connection_Options.Value =
details.connect options

41
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/Postgres_Options.enso
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@ -1,24 +1,17 @@
from Standard.Base import all
from Standard.Base.Data.Numbers import Parse_Error_Data
import Standard.Database.Internal.Postgres.Postgres_Connection
import Standard.Database.Connection.Connection_Options
from Standard.Database.Connection.Credentials import Credentials, Username_And_Password
import Standard.Database.Connection.SSL_Mode
from Standard.Database.Connection.SSL_Mode import all
import Standard.Database.Connection.Client_Certificate
import Standard.Database.Internal.Postgres.Pgpass
import project.Connection.Client_Certificate.Client_Certificate
import project.Connection.Connection_Options.Connection_Options
import project.Connection.Credentials.Credentials
import project.Connection.SSL_Mode.SSL_Mode
import project.Internal.Postgres.Postgres_Connection
import project.Internal.Postgres.Pgpass
polyglot java import org.postgresql.Driver
# TODO Dubious constructor export
from project.Connection.Postgres_Options.Postgres_Options import all
from project.Connection.Postgres_Options.Postgres_Options export all
from project.Connection.Postgres_Options.Postgres_Options import Postgres
from project.Connection.Postgres_Options.Postgres_Options export Postgres
type Postgres_Options
## Connect to a PostgreSQL database.
@ -29,9 +22,9 @@ type Postgres_Options
- database: The database to connect to. If empty, the default database will be used.
- schema: The schema to connect to. If empty, the default schema will be used.
- credentials: The credentials to use for the connection (defaults to PGPass or No Authentication).
- use_ssl: Whether to use SSL (defaults to `Prefer`).
- use_ssl: Whether to use SSL (defaults to `SSL_Mode.Prefer`).
- client_cert: The client certificate to use or `Nothing` if not needed.
Postgres (host:Text=default_postgres_host) (port:Integer=default_postgres_port) (database:Text=default_postgres_database) (schema:Text="") (credentials:(Credentials|Nothing)=Nothing) (use_ssl:SSL_Mode=Prefer) (client_cert:(Client_Certificate|Nothing)=Nothing)
Postgres (host:Text=default_postgres_host) (port:Integer=default_postgres_port) (database:Text=default_postgres_database) (schema:Text="") (credentials:(Credentials|Nothing)=Nothing) (use_ssl:SSL_Mode=SSL_Mode.Prefer) (client_cert:(Client_Certificate|Nothing)=Nothing)
## Build the Connection resource.
@ -45,7 +38,7 @@ type Postgres_Options
## Cannot use default argument values as gets in an infinite loop if you do.
make_new database schema =
Postgres self.host self.port (database.if_nothing self.database) (schema.if_nothing self.schema) self.credentials self.use_ssl self.client_cert . connect options
Postgres_Options.Postgres self.host self.port (database.if_nothing self.database) (schema.if_nothing self.schema) self.credentials self.use_ssl self.client_cert . connect options
Postgres_Connection.create self.jdbc_url properties make_new
@ -70,7 +63,7 @@ type Postgres_Options
Pgpass.read self.host self.port self.database username
Pair_Data username password ->
[Pair_Data 'user' username, Pair_Data 'password' password]
Username_And_Password username password ->
Credentials.Username_And_Password username password ->
[Pair_Data 'user' username, Pair_Data 'password' password]
ssl_properties = ssl_mode_to_jdbc_properties self.use_ssl
@ -85,13 +78,13 @@ type Postgres_Options
connection.
ssl_mode_to_jdbc_properties : SSL_Mode -> [Pair Text Text]
ssl_mode_to_jdbc_properties use_ssl = case use_ssl of
Disable -> []
Prefer -> [Pair_Data 'sslmode' 'prefer']
Require -> [Pair_Data 'sslmode' 'require']
Verify_CA cert_file ->
SSL_Mode.Disable -> []
SSL_Mode.Prefer -> [Pair_Data 'sslmode' 'prefer']
SSL_Mode.Require -> [Pair_Data 'sslmode' 'require']
SSL_Mode.Verify_CA cert_file ->
if cert_file.is_nothing then [Pair_Data 'sslmode' 'verify-ca'] else
[Pair_Data 'sslmode' 'verify-ca', Pair_Data 'sslrootcert' (File.new cert_file).absolute.path]
Full_Verification cert_file ->
SSL_Mode.Full_Verification cert_file ->
if cert_file.is_nothing then [Pair_Data 'sslmode' 'verify-full'] else
[Pair_Data 'sslmode' 'verify-full', Pair_Data 'sslrootcert' (File.new cert_file).absolute.path]

45
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/Redshift_Options.enso
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@ -1,22 +1,20 @@
from Standard.Base import all
import Standard.Database.Data.Dialect
import Standard.Database.Internal.JDBC_Connection
import Standard.Database.Connection.Connection
from Standard.Database.Connection.Credentials import Credentials, Username_And_Password
import Standard.Database.Connection.Connection_Options
import Standard.Database.Connection.SSL_Mode
from Standard.Database.Connection.SSL_Mode import all
import Standard.Database.Connection.Client_Certificate
import Standard.Database.Internal.Postgres.Pgpass
import project.Connection.Client_Certificate.Client_Certificate
import project.Connection.Connection.Connection
import project.Connection.Connection_Options.Connection_Options
import project.Connection.Credentials.Credentials
import project.Connection.SSL_Mode.SSL_Mode
import project.Data.Dialect
import project.Internal.JDBC_Connection
import project.Internal.Postgres.Pgpass
polyglot java import com.amazon.redshift.jdbc.Driver
polyglot java import java.util.Properties
polyglot java import org.enso.database.JDBCProxy
# TODO Dubious constructor export
from project.Connection.Redshift_Options.Redshift_Options import all
from project.Connection.Redshift_Options.Redshift_Options export all
from project.Connection.Redshift_Options.Redshift_Options import Redshift
from project.Connection.Redshift_Options.Redshift_Options export Redshift
type Redshift_Options
## Connect to a AWS Redshift database.
@ -26,9 +24,9 @@ type Redshift_Options
- port: The port of the database server (defaults to 5432).
- schema: The schema to connect to (if not provided or empty, the default schema will be used).
- credentials: The credentials to use for the connection (defaults to PGPass or No Authentication).
- use_ssl: Whether to use SSL (defaults to `Require`).
- use_ssl: Whether to use SSL (defaults to `SSL_Mode.Require`).
- client_cert: The client certificate to use or `Nothing` if not needed.
Redshift (host:Text) (port:Integer=5439) (schema:Text='') (credentials:Credentials|AWS_Credential|Nothing=Nothing) (use_ssl:(Disable|Require|Verify_CA|Full_Verification)=Require) (client_cert:Client_Certificate|Nothing=Nothing)
Redshift (host:Text) (port:Integer=5439) (schema:Text='') (credentials:Credentials|AWS_Credential|Nothing=Nothing) (use_ssl:SSL_Mode=SSL_Mode.Require) (client_cert:Client_Certificate|Nothing=Nothing)
## Build the Connection resource.
@ -44,14 +42,13 @@ type Redshift_Options
java_props.setProperty pair.first pair.second
jdbc_connection = JDBC_Connection.create self.jdbc_url properties
Connection.Connection_Data jdbc_connection Dialect.redshift
Connection.Value jdbc_connection Dialect.redshift
## Provides the jdbc url for the connection.
jdbc_url : Text
jdbc_url self =
prefix = case self.credentials of
AWS_Profile _ _ -> 'jdbc:redshift:iam://'
AWS_Key _ _ _ -> 'jdbc:redshift:iam://'
_ : AWS_Credential -> 'jdbc:redshift:iam://'
_ -> 'jdbc:redshift://'
prefix + self.host + ':' + self.port.to_text + (if self.schema == '' then '' else '/' + self.schema)
@ -60,11 +57,11 @@ type Redshift_Options
jdbc_properties self =
credentials = case self.credentials of
Nothing -> Pgpass.read self.host self.port self.schema
AWS_Profile db_user profile ->
AWS_Credential.Profile db_user profile ->
[Pair_Data 'user' db_user] + (if profile == '' then [] else [Pair_Data 'profile' profile])
AWS_Key db_user access_key secret_access_key ->
AWS_Credential.Key db_user access_key secret_access_key ->
[Pair_Data 'user' db_user, Pair_Data 'AccessKeyID' access_key, Pair_Data 'SecretAccessKey' secret_access_key]
Username_And_Password username password ->
Credentials.Username_And_Password username password ->
[Pair_Data 'user' username, Pair_Data 'password' password]
## Disabled as Redshift SSL settings are different to PostgreSQL.
@ -75,17 +72,13 @@ type Redshift_Options
credentials + ssl_properties + cert_properties
# TODO Dubious constructor export
from project.Connection.Redshift_Options.AWS_Credential import all
from project.Connection.Redshift_Options.AWS_Credential export all
type AWS_Credential
## Access Redshift using IAM via an AWS profile.
Arguments:
- db_user: Redshift username to connect as.
- profile: AWS profile name (if empty uses default).
AWS_Profile db_user:Text profile:Text=''
Profile db_user:Text profile:Text=''
## Access Redshift using IAM via an AWS access key ID and secret access key.
@ -93,4 +86,4 @@ type AWS_Credential
- db_user: Redshift username to connect as.
- access_key: AWS access key ID.
- secret_access_key: AWS secret access key.
AWS_Key db_user:Text access_key:Text secret_access_key:Text
Key db_user:Text access_key:Text secret_access_key:Text

9
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/SQLite_Options.enso
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@ -1,11 +1,10 @@
from Standard.Base import all
import Standard.Database.Internal.SQLite.SQLite_Connection
import Standard.Database.Connection.Connection_Options
import project.Connection.Connection_Options
import project.Internal.SQLite.SQLite_Connection
# TODO Dubious constructor export
from project.Connection.SQLite_Options.SQLite_Options import all
from project.Connection.SQLite_Options.SQLite_Options export all
from project.Connection.SQLite_Options.SQLite_Options import SQLite
from project.Connection.SQLite_Options.SQLite_Options export SQLite
type SQLite_Options
## Connect to a SQLite DB File or InMemory DB.

4
distribution/lib/Standard/Database/0.0.0-dev/src/Connection/SSL_Mode.enso
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@ -1,9 +1,5 @@
from Standard.Base import all
# TODO Dubious constructor export
from project.Connection.SSL_Mode.SSL_Mode import all
from project.Connection.SSL_Mode.SSL_Mode export all
type SSL_Mode
## Do not use SSL for the connection.
Disable

65
distribution/lib/Standard/Database/0.0.0-dev/src/Data/Column.enso
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@ -1,22 +1,19 @@
from Standard.Base import all
import Standard.Database.Internal.Helpers
import Standard.Database.Internal.IR
from Standard.Database.Data.Table import Table, freshen_columns
from Standard.Table import Filter_Condition
import Standard.Table.Data.Column.Column as Materialized_Column
import Standard.Table.Data.Sort_Column_Selector.Sort_Column_Selector
import Standard.Table.Data.Sort_Column.Sort_Column
from Standard.Table import Sort_Column, Sort_Column_Selector
import Standard.Table.Data.Value_Type.Value_Type
import Standard.Table.Data.Column.Column as Materialized_Column
from Standard.Database.Data.SQL import SQL_Type, Statement
from Standard.Database.Data.Table import Integrity_Error
from Standard.Database.Errors import Unsupported_Database_Operation_Error
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Internal.Helpers
import project.Internal.IR.Context.Context
import project.Internal.IR.Expression.Expression
import project.Internal.IR.Internal_Column.Internal_Column
# TODO Dubious constructor export
from project.Data.Column.Column import all
from project.Data.Column.Column export all
from project.Data.Table import Table, freshen_columns
from project.Errors import Unsupported_Database_Operation_Error
type Column
@ -37,7 +34,7 @@ type Column
which they come. Combined expressions must come from the same context -
they must both have the same filtering, grouping etc. rules applied to be
able to be combined.
Column_Data name:Text connection:Connection sql_type:SQL_Type expression:IR.Expression context:IR.Context
Value name:Text connection:Connection sql_type:SQL_Type expression:Expression context:Context
## UNSTABLE
@ -72,7 +69,7 @@ type Column
Converts this column into a single-column table.
to_table : Table
to_table self =
Table.Table_Data self.name self.connection [self.as_internal] self.context
Table.Value self.name self.connection [self.as_internal] self.context
## UNSTABLE
@ -81,7 +78,7 @@ type Column
Arguments:
- max_rows: specifies a maximum amount of rows to fetch; if not set, all
available rows are fetched.
read : (Nothing | Integer) -> Materialized_Column.Column
read : (Nothing | Integer) -> Materialized_Column
read self max_rows=Nothing =
self.to_table.read max_rows . at self.name
@ -113,7 +110,7 @@ type Column
## UNSTABLE
Returns an SQL statement that will be used for materializing this column.
to_sql : Statement
to_sql : SQL_Statement
to_sql self = self.to_table.to_sql
## PRIVATE
@ -134,18 +131,18 @@ type Column
make_binary_op self op_kind operand new_type=Nothing operand_type=Nothing =
actual_new_type = new_type.if_nothing self.sql_type
case operand of
Column_Data _ _ _ other_expr _ ->
Column.Value _ _ _ other_expr _ ->
case Helpers.check_integrity self operand of
False ->
Error.throw <| Unsupported_Database_Operation_Error "Cannot compare columns coming from different contexts. Only columns of a single table can be compared."
True ->
new_expr = IR.Operation op_kind [self.expression, other_expr]
Column_Data self.name self.connection actual_new_type new_expr self.context
new_expr = Expression.Operation op_kind [self.expression, other_expr]
Column.Value self.name self.connection actual_new_type new_expr self.context
_ ->
actual_operand_type = operand_type.if_nothing self.sql_type
other = IR.make_constant actual_operand_type operand
new_expr = IR.Operation op_kind [self.expression, other]
Column_Data self.name self.connection actual_new_type new_expr self.context
other = Expression.Constant actual_operand_type operand
new_expr = Expression.Operation op_kind [self.expression, other]
Column.Value self.name self.connection actual_new_type new_expr self.context
## PRIVATE
@ -158,8 +155,8 @@ type Column
make_unary_op : Text -> Text -> (SQL_Type | Nothing) -> Column
make_unary_op self op_kind new_type=Nothing =
actual_new_type = new_type.if_nothing self.sql_type
new_expr = IR.Operation op_kind [self.expression]
Column_Data self.name self.connection actual_new_type new_expr self.context
new_expr = Expression.Operation op_kind [self.expression]
Column.Value self.name self.connection actual_new_type new_expr self.context
## UNSTABLE
@ -430,7 +427,7 @@ type Column
case is_used_in_index of
True -> Error.throw <| Illegal_State_Error_Data "Cannot rename the column to "+new_name+", because it has an index with the same name."
False ->
Column_Data new_name self.connection self.sql_type self.expression self.context
Column.Value new_name self.connection self.sql_type self.expression self.context
## UNSTABLE
@ -521,8 +518,8 @@ type Column
contains self other = self.make_binary_op "contains" other new_type=SQL_Type.boolean
## PRIVATE
as_internal : IR.Internal_Column
as_internal self = IR.Internal_Column_Data self.name self.sql_type self.expression
as_internal : Internal_Column
as_internal self = Internal_Column.Value self.name self.sql_type self.expression
## PRIVATE
@ -537,7 +534,7 @@ type Column
make_aggregate : Column -> Text -> Text -> SQL_Type -> Column
make_aggregate column operation name_suffix="_agg" new_type=Nothing =
actual_new_type = new_type.if_nothing column.sql_type
expr = IR.Operation operation [column.expression]
expr = Expression.Operation operation [column.expression]
case Helpers.ensure_name_is_sane name_suffix of
True ->
new_name = column.name + name_suffix
@ -554,18 +551,18 @@ make_aggregate column operation name_suffix="_agg" new_type=Nothing =
- expected_type: The expected SQL type of the column.
- expr: The expression for the query.
- context: The context in which the query exists.
lift_aggregate : Text -> Connection -> SQL_Type -> IR.Expression -> IR.Context -> Column
lift_aggregate : Text -> Connection -> SQL_Type -> Expression -> Context -> Column
lift_aggregate new_name connection expected_type expr context =
# TODO [RW] This is a simple workaround for #1643 - we always wrap the
# aggregate into a subquery, thus making it safe to use it everywhere. A
# more complex solution may be adopted at some point.
ixes = freshen_columns [new_name] context.meta_index
col = IR.Internal_Column_Data new_name expected_type expr
col = Internal_Column.Value new_name expected_type expr
setup = context.as_subquery new_name+"_sub" [[col], ixes]
subquery = setup.first
cols = setup.second
new_col = cols.first.first
new_ixes = cols.second
new_ctx = IR.subquery_as_ctx subquery . set_index new_ixes
Column_Data new_name connection new_col.sql_type new_col.expression new_ctx
new_ctx = Context.for_subquery subquery . set_index new_ixes
Column.Value new_name connection new_col.sql_type new_col.expression new_ctx

19
distribution/lib/Standard/Database/0.0.0-dev/src/Data/Dialect.enso
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@ -1,12 +1,15 @@
from Standard.Base import all
import Standard.Base.Error.Common as Errors
from Standard.Table import Aggregate_Column
from Standard.Database.Data.SQL import Statement, SQL_Type
import Standard.Database.Internal.IR
import Standard.Database.Internal.Postgres.Postgres_Dialect
import Standard.Database.Internal.Redshift.Redshift_Dialect
import Standard.Database.Internal.SQLite.SQLite_Dialect
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Internal.IR.Internal_Column.Internal_Column
import project.Internal.IR.Order_Descriptor.Order_Descriptor
import project.Internal.Postgres.Postgres_Dialect
import project.Internal.Redshift.Redshift_Dialect
import project.Internal.SQLite.SQLite_Dialect
## PRIVATE
@ -23,7 +26,7 @@ type Dialect
## PRIVATE
A function which generates SQL code from the internal representation
according to the specific dialect.
generate_sql : Query -> Statement
generate_sql : Query -> SQL_Statement
generate_sql self = Errors.unimplemented "This is an interface only."
## PRIVATE
@ -39,7 +42,7 @@ type Dialect
One of the purposes of this method is to verify if the expected ordering
settings are supported by the given database backend.
prepare_order_descriptor : IR.Internal_Column -> Sort_Direction -> Text_Ordering -> IR.Order_Descriptor
prepare_order_descriptor : Internal_Column -> Sort_Direction -> Text_Ordering -> Order_Descriptor
prepare_order_descriptor self = Errors.unimplemented "This is an interface only."
## PRIVATE

255
distribution/lib/Standard/Database/0.0.0-dev/src/Data/SQL.enso
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@ -2,13 +2,14 @@ from Standard.Base import all
import Standard.Table.Internal.Vector_Builder.Vector_Builder
polyglot java import java.sql.Types
import project.Data.SQL_Type.SQL_Type
import project.Data.SQL_Statement.SQL_Statement
## UNSTABLE
Creates a Builder representing and empty code fragment.
empty : Builder
empty = Builder_Data (Vector_Builder.empty)
empty = Builder.Value (Vector_Builder.empty)
## UNSTABLE
@ -19,8 +20,8 @@ empty = Builder_Data (Vector_Builder.empty)
- text: The raw SQL code.
code : Text -> Builder
code text =
vec = if text.is_empty then [] else [SQL_Code_Part text]
Builder_Data (Vector_Builder.from_vector vec)
vec = if text.is_empty then [] else [SQL_Fragment.Code_Part text]
Builder.Value (Vector_Builder.from_vector vec)
## UNSTABLE
@ -31,7 +32,7 @@ code text =
- object: The object to be interpolated into the query as if it has the type
given by `sql_type`.
interpolation : SQL_Type -> Any -> Builder
interpolation sql_type object = Builder_Data (Vector_Builder.from_vector [SQL_Interpolation sql_type object])
interpolation sql_type object = Builder.Value (Vector_Builder.from_vector [SQL_Fragment.Interpolation sql_type object])
## UNSTABLE
@ -43,133 +44,19 @@ interpolation sql_type object = Builder_Data (Vector_Builder.from_vector [SQL_In
join : Builder | Text -> Vector Builder -> Builder
join separator statements =
sep = case separator of
Builder_Data _ -> separator
Builder.Value _ -> separator
_ -> code separator
if statements.length == 0 then empty else
(1.up_to statements.length . fold (statements.at 0) acc-> i-> acc ++ sep ++ statements.at i)
# TODO Dubious constructor export
from project.Data.SQL.SQL_Type import all
from project.Data.SQL.SQL_Type export all
## Represents an internal SQL data-type.
type SQL_Type
## Represents an internal SQL data-type.
Arguments:
- typeid: a numerical type id, as defined in `java.sql.Types`.
- name: a database-specific type name, used for pretty printing.
SQL_Type_Data typeid name
== self that = case that of
SQL_Type_Data that_id _ ->
self.typeid == that_id
_ -> False
## The SQL representation of `Boolean` type.
boolean : SQL_Type
boolean = SQL_Type_Data Types.BOOLEAN "BOOLEAN"
## The SQL representation of `Integer` type.
integer : SQL_Type
integer = SQL_Type_Data Types.INTEGER "INTEGER"
## The SQL representation of the `BIGINT` type.
bigint : SQL_Type
bigint = SQL_Type_Data Types.BIGINT "BIGINT"
## The SQL representation of the `SMALLINT` type.
smallint : SQL_Type
smallint = SQL_Type_Data Types.SMALLINT "SMALLINT"
## The SQL type representing decimal numbers.
decimal : SQL_Type
decimal = SQL_Type_Data Types.DECIMAL "DECIMAL"
## The SQL type representing decimal numbers.
real : SQL_Type
real = SQL_Type_Data Types.REAL "REAL"
## The SQL type representing double-precision floating-point numbers.
double : SQL_Type
double = SQL_Type_Data Types.DOUBLE "DOUBLE PRECISION"
## The SQL type representing a general numeric type.
numeric : SQL_Type
numeric = SQL_Type_Data Types.NUMERIC "NUMERIC"
## The SQL type representing one of the suppported textual types.
varchar : SQL_Type
varchar = SQL_Type_Data Types.VARCHAR "VARCHAR"
## UNSTABLE
The SQL type representing one of the suppported textual types.
It seems that JDBC treats the `TEXT` and `VARCHAR` types as interchangeable.
text : SQL_Type
text = SQL_Type_Data Types.VARCHAR "VARCHAR"
## The SQL type representing a binary object.
blob : SQL_Type
blob = SQL_Type_Data Types.BLOB "BLOB"
## PRIVATE
Returns True if this type represents an integer.
It only handles the standard types so it may return false negatives for
non-standard ones.
is_definitely_integer : Boolean
is_definitely_integer self =
[Types.INTEGER, Types.BIGINT, Types.SMALLINT, Types.TINYINT].contains self.typeid
## PRIVATE
Returns True if this type represents a boolean.
It only handles the standard types so it may return false negatives for
non-standard ones.
is_definitely_boolean : Boolean
is_definitely_boolean self =
[Types.BOOLEAN, Types.BIT].contains self.typeid
## PRIVATE
Returns True if this type represents a floating point number.
It only handles the standard types so it may return false negatives for
non-standard ones.
is_definitely_double : Boolean
is_definitely_double self =
[Types.FLOAT, Types.DOUBLE, Types.REAL].contains self.typeid
## PRIVATE
Returns True if this type represents a Text.
is_definitely_text : Boolean
is_definitely_text self =
[Types.VARCHAR, Types.LONGVARCHAR, Types.NVARCHAR, Types.LONGNVARCHAR].contains self.typeid
## PRIVATE
Returns True if this type represents a Text, using heuristics that may
match more possible types.
is_likely_text : Boolean
is_likely_text self =
self.is_definitely_text || self.name.contains "text" Text_Matcher.Case_Insensitive
# TODO Dubious constructor export
from project.Data.SQL.SQL_Fragment import all
from project.Data.SQL.SQL_Fragment export all
## UNSTABLE
A fragment of a SQL query.
It can either be a SQL_Code_Part that represents raw SQL code or
SQL_Interpolation which represents an object that will be interpolated into
the query.
It can either be a SQL_Fragment.Code_Part that represents raw SQL code or
SQL_Fragment.Interpolation which represents an object that will be
interpolated into the query.
type SQL_Fragment
## UNSTABLE
@ -178,7 +65,7 @@ type SQL_Fragment
Arguments:
- code: A fragment of SQL code.
SQL_Code_Part code:Text
Code_Part code:Text
## UNSTABLE
@ -189,90 +76,7 @@ type SQL_Fragment
- sql_type: The expected SQL type of `object`.
- object: A value that will be interpolated into the query, interpreted
as having the type `sql_type`.
SQL_Interpolation sql_type:SQL_Type object:Any
# TODO Dubious constructor export
from project.Data.SQL.Statement import all
from project.Data.SQL.Statement export all
type Statement
## UNSTABLE
Represents a built SQL statement.
Arguments:
- internal_fragments: A vector of SQL code fragments.
The statement consists of SQL code with parameters and values that will be
interpolated for these parameters.
Statement_Data (internal_fragments:(Vector SQL_Fragment))
## UNSTABLE
A vector of code fragments.
Consists of two types of values:
- SQL_Code_Part, representing parts of raw SQL code and
- SQL_Interpolation, representing objects that will be interpolated in
between the SQL code.
fragments : Vector SQL_Fragment
fragments self = self.internal_fragments
## UNSAFE
UNSTABLE
ADVANCED
This function returns a raw SQL string for the query, manually handling
the interpolation that is normally handled by the database engine itself.
It should be used EXTREMELY carefully - the returned SQL code should
always be read by a human to ensure that it does what is expected before
executing it in any REPLs or other database interfaces.
It should NEVER be used in production code.
unsafe_to_raw_sql : Text
unsafe_to_raw_sql self =
strings = self.internal_fragments . map <| case _ of
SQL_Code_Part code -> code
# TODO at some point we may try more sophisticated serialization based on data type
SQL_Interpolation _ obj -> case obj of
Number -> obj.to_text
_ -> "'" + obj.to_text.replace "'" "''" + "'"
strings.join ""
## UNSTABLE
Returns a pair consisting of the SQL code with holes for values and
a list for values that should be substituted.
# prepare : [Text, Vector Any]
prepare self =
to_code fragment = case fragment of
SQL_Code_Part code -> code
SQL_Interpolation _ _ -> "?"
to_subst fragment = case fragment of
SQL_Code_Part _ -> []
SQL_Interpolation typ obj -> [[obj, typ]]
sql = self.fragments.map to_code . join ""
substitutions = self.fragments.flat_map to_subst
[sql, substitutions]
## UNSTABLE
Returns a JSON representation of the statement.
to_json : Json
to_json self =
jsonify fragment = case fragment of
SQL_Code_Part code -> Json.from_pairs [["sql_code", code]]
SQL_Interpolation typ obj ->
inner = Json.from_pairs [["value", obj], ["expected_sql_type", typ.name]]
Json.from_pairs [["sql_interpolation", inner]]
fragments = Json.Array (self.internal_fragments.map jsonify)
Json.from_pairs [["query", fragments]]
# TODO Dubious constructor export
from project.Data.SQL.Builder import all
from project.Data.SQL.Builder export all
Interpolation sql_type:SQL_Type object:Any
type Builder
@ -285,7 +89,7 @@ type Builder
It can be used to concatenate parts of SQL code in O(1) time and at the
end build the actual query in linear time.
Builder_Data (fragments:(Vector_Builder SQL_Fragment))
Value (fragments:(Vector_Builder SQL_Fragment))
## UNSTABLE
@ -295,8 +99,8 @@ type Builder
- other: The code fragment to append to `self`.
++ : Builder -> Builder
++ self other = case other of
text : Text -> if text == "" then self else Builder_Data (self.fragments ++ (code text).fragments)
_ -> Builder_Data (self.fragments ++ other.fragments)
text : Text -> if text == "" then self else Builder.Value (self.fragments ++ (code text).fragments)
_ -> Builder.Value (self.fragments ++ other.fragments)
## UNSTABLE
@ -307,10 +111,10 @@ type Builder
## UNSTABLE
Builds a SQL statement.
build : Statement
build : SQL_Statement
build self =
fragments = optimize_fragments self.fragments.build
Statement_Data fragments
SQL_Statement.Value fragments
## UNSTABLE
@ -329,7 +133,7 @@ type Builder
prefix_if_present : Text | Builder -> Builder
prefix_if_present self prefix =
pref = case prefix of
Builder_Data _ -> prefix
_ : Builder -> prefix
_ -> code prefix
if self.is_empty then self else pref++self
@ -344,25 +148,24 @@ optimize_fragments : Vector SQL_Fragment -> Vector SQL_Fragment
optimize_fragments fragments =
builder = Vector.new_builder
go elem =
last_part = State.get SQL_Code_Part
last_part = State.get SQL_Fragment.Code_Part
case elem of
SQL_Code_Part code ->
SQL_Fragment.Code_Part code ->
new_part = case last_part of
Nothing -> SQL_Code_Part code
SQL_Code_Part other -> SQL_Code_Part other+code
State.put SQL_Code_Part new_part
SQL_Interpolation _ _ ->
Nothing -> SQL_Fragment.Code_Part code
SQL_Fragment.Code_Part other -> SQL_Fragment.Code_Part other+code
State.put SQL_Fragment.Code_Part new_part
SQL_Fragment.Interpolation _ _ ->
case last_part of
Nothing -> Nothing
SQL_Code_Part _ ->
SQL_Fragment.Code_Part _ ->
builder.append last_part
State.put SQL_Code_Part Nothing
State.put SQL_Fragment.Code_Part Nothing
builder.append elem
State.run SQL_Code_Part Nothing <|
State.run SQL_Fragment.Code_Part Nothing <|
fragments.each go
last_part = State.get SQL_Code_Part
last_part = State.get SQL_Fragment.Code_Part
case last_part of
Nothing -> Nothing
SQL_Code_Part _ -> builder.append last_part
SQL_Fragment.Code_Part _ -> builder.append last_part
builder.to_vector

4
distribution/lib/Standard/Database/0.0.0-dev/src/Data/SQL_Query.enso
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@ -1,9 +1,5 @@
from Standard.Base import Text
# TODO Dubious constructor export
from project.Data.SQL_Query.SQL_Query import all
from project.Data.SQL_Query.SQL_Query export all
type SQL_Query
## Query a whole table or view.
Table_Name name:Text

78
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@ -0,0 +1,78 @@
from Standard.Base import all
import project.Data.SQL.SQL_Fragment
type SQL_Statement
## UNSTABLE
Represents a built SQL statement.
Arguments:
- internal_fragments: A vector of SQL code fragments.
The statement consists of SQL code with parameters and values that will be
interpolated for these parameters.
Value (internal_fragments:(Vector SQL_Fragment))
## UNSTABLE
A vector of code fragments.
Consists of two types of values:
- SQL_Fragment.Code_Part, representing parts of raw SQL code and
- SQL_Fragment.Interpolation, representing objects that will be
interpolated in between the SQL code.
fragments : Vector SQL_Fragment
fragments self = self.internal_fragments
## UNSAFE
UNSTABLE
ADVANCED
This function returns a raw SQL string for the query, manually handling
the interpolation that is normally handled by the database engine itself.
It should be used EXTREMELY carefully - the returned SQL code should
always be read by a human to ensure that it does what is expected before
executing it in any REPLs or other database interfaces.
It should NEVER be used in production code.
unsafe_to_raw_sql : Text
unsafe_to_raw_sql self =
strings = self.internal_fragments . map <| case _ of
SQL_Fragment.Code_Part code -> code
# TODO at some point we may try more sophisticated serialization based on data type
SQL_Fragment.Interpolation _ obj -> case obj of
Number -> obj.to_text
_ -> "'" + obj.to_text.replace "'" "''" + "'"
strings.join ""
## UNSTABLE
Returns a pair consisting of the SQL code with holes for values and
a list for values that should be substituted.
# prepare : [Text, Vector Any]
prepare self =
to_code fragment = case fragment of
SQL_Fragment.Code_Part code -> code
SQL_Fragment.Interpolation _ _ -> "?"
to_subst fragment = case fragment of
SQL_Fragment.Code_Part _ -> []
SQL_Fragment.Interpolation typ obj -> [[obj, typ]]
sql = self.fragments.map to_code . join ""
substitutions = self.fragments.flat_map to_subst
[sql, substitutions]
## UNSTABLE
Returns a JSON representation of the statement.
to_json : Json
to_json self =
jsonify fragment = case fragment of
SQL_Fragment.Code_Part code -> Json.from_pairs [["sql_code", code]]
SQL_Fragment.Interpolation typ obj ->
inner = Json.from_pairs [["value", obj], ["expected_sql_type", typ.name]]
Json.from_pairs [["sql_interpolation", inner]]
fragments = Json.Array (self.internal_fragments.map jsonify)
Json.from_pairs [["query", fragments]]

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@ -0,0 +1,108 @@
from Standard.Base import all
polyglot java import java.sql.Types
## Represents an internal SQL data-type.
type SQL_Type
## Represents an internal SQL data-type.
Arguments:
- typeid: a numerical type id, as defined in `java.sql.Types`.
- name: a database-specific type name, used for pretty printing.
Value typeid name
== self that = case that of
SQL_Type.Value that_id _ ->
self.typeid == that_id
_ -> False
## The SQL representation of `Boolean` type.
boolean : SQL_Type
boolean = SQL_Type.Value Types.BOOLEAN "BOOLEAN"
## The SQL representation of `Integer` type.
integer : SQL_Type
integer = SQL_Type.Value Types.INTEGER "INTEGER"
## The SQL representation of the `BIGINT` type.
bigint : SQL_Type
bigint = SQL_Type.Value Types.BIGINT "BIGINT"
## The SQL representation of the `SMALLINT` type.
smallint : SQL_Type
smallint = SQL_Type.Value Types.SMALLINT "SMALLINT"
## The SQL type representing decimal numbers.
decimal : SQL_Type
decimal = SQL_Type.Value Types.DECIMAL "DECIMAL"
## The SQL type representing decimal numbers.
real : SQL_Type
real = SQL_Type.Value Types.REAL "REAL"
## The SQL type representing double-precision floating-point numbers.
double : SQL_Type
double = SQL_Type.Value Types.DOUBLE "DOUBLE PRECISION"
## The SQL type representing a general numeric type.
numeric : SQL_Type
numeric = SQL_Type.Value Types.NUMERIC "NUMERIC"
## The SQL type representing one of the suppported textual types.
varchar : SQL_Type
varchar = SQL_Type.Value Types.VARCHAR "VARCHAR"
## UNSTABLE
The SQL type representing one of the suppported textual types.
It seems that JDBC treats the `TEXT` and `VARCHAR` types as interchangeable.
text : SQL_Type
text = SQL_Type.Value Types.VARCHAR "VARCHAR"
## The SQL type representing a binary object.
blob : SQL_Type
blob = SQL_Type.Value Types.BLOB "BLOB"
## PRIVATE
Returns True if this type represents an integer.
It only handles the standard types so it may return false negatives for
non-standard ones.
is_definitely_integer : Boolean
is_definitely_integer self =
[Types.INTEGER, Types.BIGINT, Types.SMALLINT, Types.TINYINT].contains self.typeid
## PRIVATE
Returns True if this type represents a boolean.
It only handles the standard types so it may return false negatives for
non-standard ones.
is_definitely_boolean : Boolean
is_definitely_boolean self =
[Types.BOOLEAN, Types.BIT].contains self.typeid
## PRIVATE
Returns True if this type represents a floating point number.
It only handles the standard types so it may return false negatives for
non-standard ones.
is_definitely_double : Boolean
is_definitely_double self =
[Types.FLOAT, Types.DOUBLE, Types.REAL].contains self.typeid
## PRIVATE
Returns True if this type represents a Text.
is_definitely_text : Boolean
is_definitely_text self =
[Types.VARCHAR, Types.LONGVARCHAR, Types.NVARCHAR, Types.LONGNVARCHAR].contains self.typeid
## PRIVATE
Returns True if this type represents a Text, using heuristics that may
match more possible types.
is_likely_text : Boolean
is_likely_text self =
self.is_definitely_text || self.name.contains "text" Text_Matcher.Case_Insensitive

109
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@ -1,28 +1,29 @@
from Standard.Base import all
from Standard.Base.Error.Problem_Behavior import Report_Warning
import Standard.Database.Internal.Helpers
import Standard.Database.Internal.Aggregate_Helper
import Standard.Database.Internal.IR
from Standard.Database.Data.SQL_Query import Raw_SQL
from Standard.Database.Data.SQL import Statement, SQL_Type
from Standard.Table import Auto_Detect, Aggregate_Column, Data_Formatter, Column_Name_Mapping, Sort_Column_Selector, Sort_Column, Match_Columns, Position
from Standard.Table.Data.Column import get_item_string
from Standard.Table import Auto_Detect, Aggregate_Column, Data_Formatter, Column_Name_Mapping, Column_Selector, Sort_Column_Selector, Sort_Column, Match_Columns, Position
import Standard.Table.Data.Table.Table as Materialized_Table
from Standard.Table.Data.Table import print_table
from Standard.Table.Data.Filter_Condition_Helpers import make_filter_column
from Standard.Table.Errors import No_Index_Set_Error, No_Such_Column_Error, No_Such_Column_Error_Data
from Standard.Table.Data.Column_Selector import Column_Selector
import Standard.Table.Internal.Java_Exports
import Standard.Table.Internal.Table_Helpers
import Standard.Table.Internal.Problem_Builder.Problem_Builder
import Standard.Table.Internal.Aggregate_Column_Helper
from Standard.Table.Data.Column import get_item_string
from Standard.Table.Data.Table import print_table
from Standard.Table.Internal.Filter_Condition_Helpers import make_filter_column
from Standard.Table.Errors import No_Index_Set_Error, No_Such_Column_Error, No_Such_Column_Error_Data
import project.Data.Column.Column
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Internal.Helpers
import project.Internal.Aggregate_Helper
import project.Internal.IR.Context.Context
import project.Internal.IR.Expression.Expression
import project.Internal.IR.From_Spec.From_Spec
import project.Internal.IR.Internal_Column.Internal_Column
import project.Internal.IR.Join_Kind.Join_Kind
import project.Internal.IR.Query.Query
from Standard.Database.Data.Column import Column, Column_Data
from Standard.Database.Internal.IR import Internal_Column, Internal_Column_Data
from Standard.Database.Errors import Unsupported_Database_Operation_Error_Data
polyglot java import java.sql.JDBCType
@ -39,7 +40,7 @@ type Table
- connection: The connection with which the table is associated.
- internal_columns: The internal representation of the table columns.
- context: The context associated with this table.
Table_Data name:Text connection:Connection (internal_columns:(Vector Internal_Column)) context:IR.Context
Value name:Text connection:Connection (internal_columns:(Vector Internal_Column)) context:IR.Context
## UNSTABLE
@ -335,7 +336,7 @@ type Table
_ : Text -> Panic.rethrow (self.at column)
_ ->
if Helpers.check_integrity self column then column else
Panic.throw (Integrity_Error_Data "Column "+column.name)
Panic.throw (Integrity_Error.Error "Column "+column.name)
## ALIAS Filter Rows
@ -385,7 +386,7 @@ type Table
_ : Column ->
mask filter_column = case Helpers.check_integrity self filter_column of
False ->
Error.throw (Integrity_Error_Data "Column "+filter_column.name)
Error.throw (Integrity_Error.Error "Column "+filter_column.name)
True ->
new_filters = self.context.where_filters + [filter_column.expression]
new_ctx = self.context.set_where_filters new_filters
@ -401,7 +402,7 @@ type Table
## PRIVATE
with_no_rows self =
false_expression = IR.Operation "=" [IR.Constant SQL_Type.integer 1, IR.Constant SQL_Type.integer 2]
false_expression = Expression.Operation "=" [Expression.Constant SQL_Type.integer 1, Expression.Constant SQL_Type.integer 2]
new_filters = self.context.where_filters + [false_expression]
new_ctx = self.context.set_where_filters new_filters
self.updated_context new_ctx
@ -483,7 +484,7 @@ type Table
case is_used_in_index of
True -> Error.throw <| Illegal_State_Error_Data "Cannot override column "+name+", because it is used as an index. Remove the index or use a different name."
False ->
new_col = Internal_Column_Data name column.sql_type column.expression
new_col = Internal_Column.Value name column.sql_type column.expression
replace = self.internal_columns.exists (c -> c.name == name)
case replace of
True ->
@ -659,7 +660,7 @@ type Table
Panic.rethrow (Helpers.ensure_name_is_sane left_suffix && Helpers.ensure_name_is_sane right_suffix)
if left_suffix == right_suffix then
Panic.throw <| Illegal_State_Error_Data "left_suffix must be different from right_suffix"
kind = if drop_unmatched then IR.Join_Inner else IR.Join_Left
kind = if drop_unmatched then Join_Kind.Inner else Join_Kind.Left
# Prepare the left and right pairs of indices along which the join will be performed.
left_join_index : Vector Internal_Column
@ -719,12 +720,12 @@ type Table
new_columns = left_renamed_columns + right_renamed_columns
on_exprs = left_new_join_index.zip right_new_join_index l-> r->
IR.Operation "=" [l.expression, r.expression]
new_from = IR.Join kind left_subquery right_subquery on_exprs
Expression.Operation "=" [l.expression, r.expression]
new_from = From_Spec.Join kind left_subquery right_subquery on_exprs
new_limit = Nothing
new_ctx = IR.Context_Data new_from [] [] [] new_index new_limit
new_ctx = Context.Value new_from [] [] [] new_index new_limit
Table.Table_Data new_table_name self.connection new_columns new_ctx
Table.Value new_table_name self.connection new_columns new_ctx
## ALIAS group, summarize
@ -763,7 +764,7 @@ type Table
agg = p.second
new_name = p.first
Aggregate_Helper.make_aggregate_column self agg new_name . catch
partitioned = results.partition (_.is_a Internal_Column_Data)
partitioned = results.partition (_.is_a Internal_Column.Value)
## When working on join we may encounter further issues with having
aggregate columns exposed directly, it may be useful to re-use
the `lift_aggregate` method to push the aggregates into a
@ -793,11 +794,11 @@ type Table
## DEPRECATED Will be replaced with `Incomplete_Columns` selector (to be used with `remove_columns`).
drop_missing_columns : Table
drop_missing_columns self =
rows_expr = IR.Operation "COUNT_ROWS" []
rows_expr = Expression.Operation "COUNT_ROWS" []
all_rows_column_name = "row_count"
make_count_expr expr = IR.Operation "COUNT" [expr]
make_count_expr expr = Expression.Operation "COUNT" [expr]
cols = self.internal_columns.map (c -> [c.name, make_count_expr c.expression])
query = IR.Select [[all_rows_column_name, rows_expr]]+cols self.context
query = Query.Select [[all_rows_column_name, rows_expr]]+cols self.context
sql = self.connection.dialect.generate_sql query
table = self.connection.read_statement sql
all_rows = table.at all_rows_column_name . at 0
@ -808,15 +809,15 @@ type Table
## Returns the amount of rows in this table.
row_count : Integer
row_count self = if self.internal_columns.is_empty then 0 else
expr = IR.Operation "COUNT_ROWS" []
expr = Expression.Operation "COUNT_ROWS" []
column_name = "row_count"
## We need to keep some column in the subquery which will determine if
the query is performing regular selection or aggregation. To avoid
computing too much we do not pass all the columns but only the first
one.
setup = self.context.as_subquery self.name [[self.internal_columns.first]]
new_ctx = IR.subquery_as_ctx setup.first
query = IR.Select [[column_name, expr]] new_ctx
new_ctx = Context.for_subquery setup.first
query = Query.Select [[column_name, expr]] new_ctx
sql = self.connection.dialect.generate_sql query
table = self.connection.read_statement sql
table.at column_name . at 0
@ -859,13 +860,13 @@ type Table
## UNSTABLE
Returns an SQL statement that will be used for materializing this table.
to_sql : Statement
to_sql : SQL_Statement
to_sql self =
cols = self.internal_columns.map (c -> [c.name, c.expression])
case cols.is_empty of
True -> Error.throw <| Unsupported_Database_Operation_Error_Data "Cannot generate SQL for a table with no columns."
False ->
query = IR.Select cols self.context
query = Query.Select cols self.context
self.connection.dialect.generate_sql query
## Returns a Table describing this table's contents.
@ -881,10 +882,10 @@ type Table
Naively wrapping each column in a `COUNT(...)` will not
always work as aggregates cannot be nested.
setup = self.context.as_subquery self.name [self.internal_columns]
new_ctx = IR.subquery_as_ctx setup.first
new_ctx = Context.for_subquery setup.first
new_columns = setup.second.first.map column->
[column.name, IR.Operation "COUNT" [column.expression]]
query = IR.Select new_columns new_ctx
[column.name, Expression.Operation "COUNT" [column.expression]]
query = Query.Select new_columns new_ctx
self.connection.dialect.generate_sql query
count_table = self.connection.read_statement count_query
counts = if cols.is_empty then [] else count_table.columns.map c-> c.at 0
@ -904,7 +905,7 @@ type Table
# these distinctness assumptions, to avoid this renaming.
ixes = freshen_columns [internal.name] self.context.meta_index
new_ctx = self.context.set_index ixes
Column_Data internal.name self.connection internal.sql_type internal.expression new_ctx
Column.Value internal.name self.connection internal.sql_type internal.expression new_ctx
## PRIVATE
@ -913,7 +914,7 @@ type Table
Arguments:
- columns: The columns with which to update this table.
updated_columns : Vector Internal_Column -> Table
updated_columns self internal_columns = Table.Table_Data self.name self.connection internal_columns self.context
updated_columns self internal_columns = Table.Value self.name self.connection internal_columns self.context
## PRIVATE
@ -922,7 +923,7 @@ type Table
Arguments:
- ctx: The new context for this table.
updated_context : Context -> Table
updated_context self ctx = Table.Table_Data self.name self.connection self.internal_columns ctx
updated_context self ctx = Table.Value self.name self.connection self.internal_columns ctx
## PRIVATE
@ -932,7 +933,7 @@ type Table
- ctx: The new context for this table.
- internal_columns: The new columns to include in the table.
updated_context_and_columns : Context -> Vector Internal_Column -> Table
updated_context_and_columns self ctx internal_columns = Table.Table_Data self.name self.connection internal_columns ctx
updated_context_and_columns self ctx internal_columns = Table.Value self.name self.connection internal_columns ctx
## PRIVATE
@ -956,12 +957,12 @@ type Table
insert : Vector Any -> Nothing
insert self values =
table_name = case self.context.from_spec of
IR.From_Table name _ -> name
From_Spec.From_Table name _ -> name
_ -> Error.throw <| Illegal_State_Error_Data "Inserting can only be performed on tables as returned by `query`, any further processing is not allowed."
# TODO [RW] before removing the PRIVATE tag, add a check that no bad stuff was done to the table as described above
pairs = self.internal_columns.zip values col-> value->
[col.name, IR.Constant col.sql_type value]
query = self.connection.dialect.generate_sql <| IR.Insert table_name pairs
[col.name, Expression.Constant col.sql_type value]
query = self.connection.dialect.generate_sql <| Query.Insert table_name pairs
affected_rows = self.connection.execute_update query
case affected_rows == 1 of
False -> Error.throw <| Illegal_State_Error_Data "The update unexpectedly affected "+affected_rows.to_text+" rows."
@ -1016,21 +1017,17 @@ type Table
Write a database table to a CSV file.
import Standard.Examples
import Standard.Database
from Standard.Database import all
example_to_csv =
connection = Database.connect (SQLite (File.new "db.sqlite"))
table = connection.query (Table_Name "Table")
table = connection.query (SQL_Query.Table_Name "Table")
table.write (enso_project.data / "example_csv_output.csv")
write : File|Text -> File_Format -> Existing_File_Behavior -> Match_Columns -> Problem_Behavior -> Nothing ! Column_Mismatch | Illegal_Argument_Error | File_Not_Found | IO_Error
write self path format=Auto_Detect on_existing_file=Existing_File_Behavior.Backup match_columns=Match_Columns.By_Name on_problems=Report_Warning =
# TODO This should ideally be done in a streaming manner, or at least respect the row limits.
self.read.write path format on_existing_file match_columns on_problems
# TODO Dubious constructor export
from project.Data.Table.Integrity_Error import all
from project.Data.Table.Integrity_Error export all
type Integrity_Error
## UNSTABLE
@ -1039,7 +1036,7 @@ type Integrity_Error
contexts.
To use columns from different tables, you must first join them.
Integrity_Error_Data object_description
Error object_description
# Return a readable description of this error.
to_text : Text
@ -1057,11 +1054,11 @@ type Integrity_Error
- table_name: The name of the table to get.
- columns: The names of the columns to get.
- ctx: The context to use for the table.
# make_table : Connection -> Text -> Vector [Text, SQL_Type] -> IR.Context -> Table
make_table : Connection -> Text -> Vector -> IR.Context -> Table
# make_table : Connection -> Text -> Vector [Text, SQL_Type] -> Context -> Table
make_table : Connection -> Text -> Vector -> Context -> Table
make_table connection table_name columns ctx =
cols = columns.map (p -> Internal_Column_Data p.first p.second (IR.Column table_name p.first))
Table.Table_Data table_name connection cols ctx
cols = columns.map (p -> Internal_Column.Value p.first p.second (Expression.Column table_name p.first))
Table.Value table_name connection cols ctx
## PRIVATE

65
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/Aggregate_Helper.enso
View File

@ -1,9 +1,12 @@
from Standard.Base import all hiding First, Last
from Standard.Table.Data.Aggregate_Column.Aggregate_Column import all
import Standard.Database.Internal.IR
from Standard.Database.Data.SQL import SQL_Type
from Standard.Database.Errors import Unsupported_Database_Operation_Error_Data
import project.Data.SQL_Type.SQL_Type
import project.Internal.IR.Expression.Expression
import project.Internal.IR.Internal_Column.Internal_Column
from project.Errors import Unsupported_Database_Operation_Error_Data
## PRIVATE
Creates an `Internal_Column` that computes the specified statistic.
@ -11,57 +14,57 @@ from Standard.Database.Errors import Unsupported_Database_Operation_Error_Data
The provided `aggregate` is assumed to contain only already resolved columns.
You may need to transform it with `resolve_aggregate` first.
make_aggregate_column : Table -> Aggregate_Column -> Text -> IR.Internal_Column
make_aggregate_column : Table -> Aggregate_Column -> Text -> Internal_Column
make_aggregate_column table aggregate new_name =
sql_type = table.connection.dialect.resolve_target_sql_type aggregate
expression = make_expression aggregate table.connection.dialect
IR.Internal_Column_Data new_name sql_type expression
Internal_Column.Value new_name sql_type expression
## PRIVATE
Creates an Internal Representation of the expression that computes a
requested statistic.
make_expression : Aggregate_Column -> Dialect -> IR.Expression
make_expression : Aggregate_Column -> Dialect -> Expression
make_expression aggregate dialect =
is_non_empty_selector v = if v.is_nothing then False else v.columns.not_empty
case aggregate of
Group_By c _ -> c.expression
Count _ -> IR.Operation "COUNT_ROWS" []
Count _ -> Expression.Operation "COUNT_ROWS" []
Count_Distinct columns _ ignore_nothing -> if columns.is_empty then Error.throw (Illegal_Argument_Error "Count_Distinct must have at least one column.") else
case ignore_nothing of
True -> IR.Operation "COUNT_DISTINCT" (columns.map .expression)
False -> IR.Operation "COUNT_DISTINCT_INCLUDE_NULL" (columns.map .expression)
Count_Not_Nothing c _ -> IR.Operation "COUNT" [c.expression]
Count_Nothing c _ -> IR.Operation "COUNT_IS_NULL" [c.expression]
Count_Not_Empty c _ -> IR.Operation "COUNT_NOT_EMPTY" [c.expression]
Count_Empty c _ -> IR.Operation "COUNT_EMPTY" [c.expression]
Percentile p c _ -> IR.Operation "PERCENTILE" [IR.Constant SQL_Type.double p, c.expression]
Mode c _ -> IR.Operation "MODE" [c.expression]
True -> Expression.Operation "COUNT_DISTINCT" (columns.map .expression)
False -> Expression.Operation "COUNT_DISTINCT_INCLUDE_NULL" (columns.map .expression)
Count_Not_Nothing c _ -> Expression.Operation "COUNT" [c.expression]
Count_Nothing c _ -> Expression.Operation "COUNT_IS_NULL" [c.expression]
Count_Not_Empty c _ -> Expression.Operation "COUNT_NOT_EMPTY" [c.expression]
Count_Empty c _ -> Expression.Operation "COUNT_EMPTY" [c.expression]
Percentile p c _ -> Expression.Operation "PERCENTILE" [Expression.Constant SQL_Type.double p, c.expression]
Mode c _ -> Expression.Operation "MODE" [c.expression]
First c _ ignore_nothing order_by -> case is_non_empty_selector order_by of
False -> Error.throw (Unsupported_Database_Operation_Error_Data "`First` aggregation requires at least one `order_by` column.")
True ->
order_bys = order_by.columns.map c-> dialect.prepare_order_descriptor c.column.as_internal c.direction Text_Ordering.Default
case ignore_nothing of
False -> IR.Operation "FIRST" [c.expression]+order_bys
True -> IR.Operation "FIRST_NOT_NULL" [c.expression]+order_bys
False -> Expression.Operation "FIRST" [c.expression]+order_bys
True -> Expression.Operation "FIRST_NOT_NULL" [c.expression]+order_bys
Last c _ ignore_nothing order_by -> case is_non_empty_selector order_by of
False -> Error.throw (Unsupported_Database_Operation_Error_Data "`Last` aggregation requires at least one `order_by` column.")
True ->
order_bys = order_by.columns.map c-> dialect.prepare_order_descriptor c.column.as_internal c.direction Text_Ordering.Default
case ignore_nothing of
False -> IR.Operation "LAST" [c.expression]+order_bys
True -> IR.Operation "LAST_NOT_NULL" [c.expression]+order_bys
Maximum c _ -> IR.Operation "MAX" [c.expression]
Minimum c _ -> IR.Operation "MIN" [c.expression]
Shortest c _ -> IR.Operation "SHORTEST" [c.expression]
Longest c _ -> IR.Operation "LONGEST" [c.expression]
False -> Expression.Operation "LAST" [c.expression]+order_bys
True -> Expression.Operation "LAST_NOT_NULL" [c.expression]+order_bys
Maximum c _ -> Expression.Operation "MAX" [c.expression]
Minimum c _ -> Expression.Operation "MIN" [c.expression]
Shortest c _ -> Expression.Operation "SHORTEST" [c.expression]
Longest c _ -> Expression.Operation "LONGEST" [c.expression]
Standard_Deviation c _ population -> case population of
True -> IR.Operation "STDDEV_POP" [c.expression]
False -> IR.Operation "STDDEV_SAMP" [c.expression]
True -> Expression.Operation "STDDEV_POP" [c.expression]
False -> Expression.Operation "STDDEV_SAMP" [c.expression]
Concatenate c _ separator prefix suffix quote_char ->
base_args = [c.expression, IR.Constant SQL_Type.text separator, IR.Constant SQL_Type.text prefix, IR.Constant SQL_Type.text suffix]
base_args = [c.expression, Expression.Constant SQL_Type.text separator, Expression.Constant SQL_Type.text prefix, Expression.Constant SQL_Type.text suffix]
case quote_char.is_empty of
True -> IR.Operation "CONCAT" base_args
False -> IR.Operation "CONCAT_QUOTE_IF_NEEDED" base_args+[IR.Constant SQL_Type.text quote_char]
Sum c _ -> IR.Operation "SUM" [c.expression]
Average c _ -> IR.Operation "AVG" [c.expression]
Median c _ -> IR.Operation "MEDIAN" [c.expression]
True -> Expression.Operation "CONCAT" base_args
False -> Expression.Operation "CONCAT_QUOTE_IF_NEEDED" base_args+[Expression.Constant SQL_Type.text quote_char]
Sum c _ -> Expression.Operation "SUM" [c.expression]
Average c _ -> Expression.Operation "AVG" [c.expression]
Median c _ -> Expression.Operation "MEDIAN" [c.expression]

68
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/Base_Generator.enso
View File

@ -1,15 +1,17 @@
from Standard.Base import all
import Standard.Database.Internal.IR
import project.Data.SQL
import project.Data.SQL.Builder
import project.Internal.IR.Context.Context
import project.Internal.IR.Expression.Expression
import project.Internal.IR.From_Spec.From_Spec
import project.Internal.IR.Join_Kind.Join_Kind
import project.Internal.IR.Order_Descriptor.Order_Descriptor
import project.Internal.IR.Nulls_Order.Nulls_Order
import project.Internal.IR.Query.Query
from project.Data.SQL import code
from Standard.Database.Data.SQL import Builder, code
import Standard.Database.Data.SQL
from Standard.Database.Errors import Unsupported_Database_Operation_Error
# TODO Dubious constructor export
from project.Internal.Base_Generator.Internal_Dialect import all
from project.Internal.Base_Generator.Internal_Dialect export all
from project.Errors import Unsupported_Database_Operation_Error
type Internal_Dialect
@ -26,7 +28,7 @@ type Internal_Dialect
identifier name in such a way that it can be used in the query; that
usually consists of wrapping the name in quotes and escaping any quotes
within it.
Internal_Dialect_Data (operation_map:(Map Text (Vector (Builder->Builder)))) (wrap_identifier:(Text->Builder))
Value (operation_map:(Map Text (Vector (Builder->Builder)))) (wrap_identifier:(Text->Builder))
## PRIVATE
@ -37,7 +39,7 @@ type Internal_Dialect
extend_with : Vector Any -> Internal_Dialect
extend_with self mappings =
new_map = mappings.fold self.operation_map (m -> el -> m.insert (el.at 0) (el.at 1))
Internal_Dialect_Data new_map self.wrap_identifier
Internal_Dialect.Value new_map self.wrap_identifier
## PRIVATE
@ -173,7 +175,7 @@ base_dialect =
counts = [fun "COUNT", ["COUNT_ROWS", make_constant "COUNT(*)"]]
nulls = [["ISNULL", make_right_unary_op "IS NULL"], ["FILLNULL", make_function "COALESCE"]]
base_map = Map.from_vector (arith + logic + compare + agg + nulls + counts)
Internal_Dialect_Data base_map wrap_in_quotes
Internal_Dialect.Value base_map wrap_in_quotes
## PRIVATE
@ -182,16 +184,16 @@ base_dialect =
Arguments:
- dialect: The SQL dialect in which the expression is being generated.
- expr: The expression to generate SQL code for.
generate_expression : Internal_Dialect -> IR.Expression -> Builder
generate_expression : Internal_Dialect -> Expression | Order_Descriptor -> Builder
generate_expression dialect expr = case expr of
IR.Column origin name ->
Expression.Column origin name ->
dialect.wrap_identifier origin ++ '.' ++ dialect.wrap_identifier name
IR.Constant sql_type value -> SQL.interpolation sql_type value
IR.Operation kind arguments ->
Expression.Constant sql_type value -> SQL.interpolation sql_type value
Expression.Operation kind arguments ->
op = dialect.operation_map.get_or_else kind (Error.throw <| Unsupported_Database_Operation_Error kind)
parsed_args = arguments.map (generate_expression dialect)
op parsed_args
IR.Order_Descriptor_Data _ _ _ _ -> generate_order dialect expr
_ : Order_Descriptor -> generate_order dialect expr
## PRIVATE
@ -215,22 +217,22 @@ alias dialect name =
- from_spec: A description of the FROM clause.
generate_from_part : Internal_Dialect -> From_Spec -> Builder
generate_from_part dialect from_spec = case from_spec of
IR.From_Table name as_name ->
From_Spec.From_Table name as_name ->
dialect.wrap_identifier name ++ alias dialect as_name
IR.From_Query raw_sql as_name ->
From_Spec.From_Query raw_sql as_name ->
code raw_sql . paren ++ alias dialect as_name
IR.Join kind left_spec right_spec on ->
From_Spec.Join kind left_spec right_spec on ->
left = generate_from_part dialect left_spec
right = generate_from_part dialect right_spec
prefix = case kind of
IR.Join_Inner -> "INNER JOIN"
IR.Join_Left -> "LEFT JOIN"
IR.Join_Right -> "RIGHT JOIN"
IR.Join_Cross -> "CROSS JOIN"
Join_Kind.Inner -> "INNER JOIN"
Join_Kind.Left -> "LEFT JOIN"
Join_Kind.Right -> "RIGHT JOIN"
Join_Kind.Cross -> "CROSS JOIN"
ons = SQL.join " AND " (on.map (generate_expression dialect)) . prefix_if_present " ON "
left ++ (" " + prefix + " ") ++ right ++ ons
IR.Sub_Query columns context as_name ->
sub = generate_query dialect (IR.Select columns context)
From_Spec.Sub_Query columns context as_name ->
sub = generate_query dialect (Query.Select columns context)
sub.paren ++ alias dialect as_name
## PRIVATE
@ -247,8 +249,8 @@ generate_order dialect order_descriptor =
Sort_Direction.Descending -> " DESC"
nulls_suffix = case order_descriptor.nulls_order of
Nothing -> ""
IR.Nulls_First -> " NULLS FIRST"
IR.Nulls_Last -> " NULLS LAST"
Nulls_Order.First -> " NULLS FIRST"
Nulls_Order.Last -> " NULLS LAST"
collation = case order_descriptor.collation of
Nothing -> ""
collation_name -> ' COLLATE "' + collation_name + '"'
@ -263,7 +265,7 @@ generate_order dialect order_descriptor =
Arguments:
- dialect: The SQL dialect for which the code is being generated.
- ctx: A description of the SELECT clause.
generate_select_context : Internal_Dialect -> IR.Context -> Builder
generate_select_context : Internal_Dialect -> Context -> Builder
generate_select_context dialect ctx =
gen_exprs exprs = exprs.map (generate_expression dialect)
from_part = generate_from_part dialect ctx.from_spec
@ -301,15 +303,15 @@ generate_insert_query dialect table_name pairs =
Arguments:
- dialect: The SQL dialect for which the code is being generated.
- query: An IR describing the query.
generate_query : Internal_Dialect -> IR.Query -> Builder
generate_query : Internal_Dialect -> Query -> Builder
generate_query dialect query = case query of
IR.Select columns ctx ->
Query.Select columns ctx ->
gen_column pair = (generate_expression dialect pair.second) ++ alias dialect pair.first
cols = SQL.join ", " (columns.map gen_column)
code "SELECT " ++ cols ++ generate_select_context dialect ctx
IR.Select_All ctx ->
Query.Select_All ctx ->
code "SELECT * " ++ generate_select_context dialect ctx
IR.Insert table_name pairs ->
Query.Insert table_name pairs ->
generate_insert_query dialect table_name pairs
_ -> Error.throw <| Unsupported_Database_Operation_Error "Unsupported query type."

14
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/Helpers.enso
View File

@ -1,7 +1,7 @@
from Standard.Base import all
from Standard.Database.Data.Table import Table
from Standard.Database.Data.Column import Column
import project.Data.Table.Table
import project.Data.Column.Column
polyglot java import java.util.regex.Pattern
@ -36,10 +36,6 @@ unify_vector_singleton x = case x of
_ : Vector.Vector -> x
_ -> [x]
# TODO Dubious constructor export
from project.Internal.Helpers.Unsupported_Name_Error import all
from project.Internal.Helpers.Unsupported_Name_Error export all
## UNSTABLE
Signals that a name for a column or table is not supported.
@ -50,8 +46,8 @@ from project.Internal.Helpers.Unsupported_Name_Error export all
Currently the names can only include ASCII letters, numbers and the
underscore. This is a temporary limitation simplifying name handling. It will
be removed in a future version.
type Unsupported_Name_Error
Unsupported_Name_Error_Data text
type Unsupported_Name
Error text
## PRIVATE
@ -77,5 +73,5 @@ ensure_name_is_sane name =
is_safe =
Pattern.matches "[A-Za-z_0-9]+" name
if is_safe then True else
Error.throw <| Unsupported_Name_Error_Data (name + " is not a valid name for a column. Please use english letters, numbers and underscore only.")
Error.throw <| Unsupported_Name.Error (name + " is not a valid name for a column. Please use english letters, numbers and underscore only.")

451
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/IR.enso
View File

@ -1,451 +0,0 @@
from Standard.Base import all
from Standard.Database.Data.SQL import SQL_Type
# TODO Dubious constructor export
from project.Internal.IR.Expression import all
from project.Internal.IR.Expression export all
## PRIVATE
The internal representation of an SQL expression which can be a column
reference, an interpolated constant or an operation that combines other
expressions.
type Expression
## PRIVATE
The internal representation of an SQL expression that gets a value from a
column.
Arguments:
- origin: the name of the entity (table or sub-query) that this column
originates from, it corresponds to the `alias` field in `from_spec`.
- name: the name of the column directly in the table or its alias in a
sub-query.
Column (origin : Text) (name : Text)
## PRIVATE
The internal representation of an SQL expression which is a constant to
be interpolated when building the query.
Arguments:
- sql_type: The SQL type that this object is going to be serialized to.
It is usually inferred from the expression's context.
- value: the value to be interpolated; it should be a simple Number, Text
or other types that are serializable for JDBC.
Constant (sql_type : SQL_Type) (value : Any)
## PRIVATE
The internal representation of an SQL expression built from an operation
and sub-expressions.
Arguments:
- kind: the name of the operation, these can be both functions or infix
operators, the actual implementation is determined by a specific
dialect.
- expressions: a list of expressions which are arguments to the operation
different operations support different amounts of arguments.
Operation (kind : Text) (expressions : Vector Expression)
# TODO Dubious constructor export
from project.Internal.IR.Internal_Column import all
from project.Internal.IR.Internal_Column export all
type Internal_Column
## PRIVATE
An internal column structure.
Arguments:
- name: The column name.
- sql_type: The SQL type of the column.
- expression: An expression for applying to the column.
Internal_Column_Data name sql_type expression
## PRIVATE
Rename the internal column.
Arguments:
- new_name: The new name for the column.
rename : Text -> Internal_Column
rename self new_name = Internal_Column_Data new_name self.sql_type self.expression
# TODO Dubious constructor export
from project.Internal.IR.Context import all
from project.Internal.IR.Context export all
## PRIVATE
A context associated with an SQL query.
type Context
## PRIVATE
A context associated with an SQL query.
The expressions can only be computed in a context which specifies from where
their columns come and set filters and other settings for processing the
query.
Arguments:
- from_spec: the sources for the query, see `From_Spec` for more
details.
- where_filters: a list of expressions for filtering - only the rows
for which these expressions evaluate to true are included in the
result.
- orders: a list of ordering expressions, for each entry an ORDER BY
clause is added.
- groups: a list of grouping expressions, for each entry a GROUP BY is
added, the resulting query can then directly include only the
grouped-by columns or aggregate expressions.
- meta_index: a list of internal columns to use for joining or grouping.
- limit: an optional maximum number of elements that the equery should
return.
Context_Data (from_spec : From_Spec) (where_filters : Vector Expression) (orders : Vector Order_Descriptor) (groups : Vector Expression) (meta_index : Vector Internal_Column) (limit : Nothing | Integer)
## PRIVATE
Returns a copy of the context with changed `meta_index`.
Arguments:
- new_index: The new index to set in the query.
set_index : Vector Internal_Column -> Context
set_index self new_index =
Context_Data self.from_spec self.where_filters self.orders self.groups new_index self.limit
## PRIVATE
Returns a copy of the context with changed `where_filters`.
Arguments:
- new_filters: The new filters to set in the query.
set_where_filters : Vector Expression -> Context
set_where_filters self new_filters =
Context_Data self.from_spec new_filters self.orders self.groups self.meta_index self.limit
## PRIVATE
Returns a copy of the context with changed `orders`.
Arguments:
- new_orders: The new ordering clauses to set in the query.
set_orders : Vector Order_Descriptor -> Context
set_orders self new_orders =
Context_Data self.from_spec self.where_filters new_orders self.groups self.meta_index self.limit
## PRIVATE
Returns a copy of the context with added `orders`.
The orderings are modified in such a way that the newly added ordering
takes precedence, but if any orderings were already present they are also
taken into account to break ties within the new ordering.
In practice this means, that the old orderings are preserved, but the new
ones are added to the beginning of the list so that they take precedence.
Arguments:
- new_orders: The new ordering clauses to add to the query.
add_orders : Vector Order_Descriptor -> Context
add_orders self new_orders =
Context_Data self.from_spec self.where_filters new_orders+self.orders self.groups self.meta_index self.limit
## PRIVATE
Returns a copy of the context with changed `groups`.
Arguments:
- new_groups: The new grouping clauses to set in the query.
set_groups : Vector Expression -> Context
set_groups self new_groups =
Context_Data self.from_spec self.where_filters self.orders new_groups self.meta_index self.limit
## PRIVATE
Returns a copy of the context with changed `limit`.
Arguments:
- new_limit: The new limit clauses to set in the query.
set_limit : (Nothing | Integer) -> Context
set_limit self new_limit =
Context_Data self.from_spec self.where_filters self.orders self.groups self.meta_index new_limit
## PRIVATE
'Lifts' this context into a subquery, so that the original context (with all filters etc.) is
encapsulated within the subquery and all external references passed as the second argument,
refer directly to that subquery.
It takes a list of lists of columns that should be included in that subquery (this can for
example the list of regular columns, the list of indices etc.)
It assumes that columns on these lists all have unique names.
It returns a new context and the lists transformed in such a way that each column corresponds
to one from the original list but it is valid in the new context.
This is useful as a preprocessing step between combining queries, for example in a join.
# as_subquery : Text -> Vector (Vector Internal_Column) -> [IR.Sub_Query, Vector (Vector Internal_Column)]
as_subquery : Text -> Vector Any -> Vector
as_subquery self alias column_lists =
rewrite_internal_column : Internal_Column -> Internal_Column
rewrite_internal_column column =
Internal_Column_Data column.name column.sql_type (IR.Column alias column.name)
new_columns = column_lists.map columns->
columns.map rewrite_internal_column
encapsulated_columns = column_lists.flat_map columns->
columns.map column-> [column.name, column.expression]
new_from = IR.Sub_Query encapsulated_columns self alias
[new_from, new_columns]
# TODO Dubious constructor export
from project.Internal.IR.From_Spec import all
from project.Internal.IR.From_Spec export all
## PRIVATE
Used as part of the context, specifies the sources of the query.
type From_Spec
## PRIVATE
A query source that takes data directly from a table in the
database.
Arguments:
- table_name: the full name identifying the table in the database.
- alias: the name upon which the table can be referred to in other
parts of the query, this is especially useful for example in
self-joins, allowing to differentiate between different instances of
the same table.
From_Table (table_name : Text) (alias : Text)
## PRIVATE
A query source that holds a raw SQL statement.
Arguments:
- raw_sql: the raw SQL code of a query used as a source for this table.
- alias: the name upon which the table can be referred to in other
parts of the query, this is especially useful for example in
self-joins, allowing to differentiate between different instances of
the same table.
From_Query (raw_sql : Text) (alias : Text)
## PRIVATE
A query source that performs a join operation on two sources.
Arguments:
- kind: the kind of the join.
- left_spec: the left data source to be joined
- right_spec: the right data source to be joined
- on: a list of expressions that will be used as join conditions, these
are usually be equalities between expressions from the left and right
sources.
Join (kind : Join_Kind) (left_spec : From_Spec) (right_spec : From_Spec) (on : Vector Expression)
## PRIVATE
A query source consisting of a sub-query.
Arguments:
- columns: a list of pairs; each first element is the alias for the
column created in the sub-query and the second element is the
expression to be computed.
- context: the context for the sub-query.
- alias: the name upon which the results of this sub-query can be
referred to in other parts of the query.
Sub_Query (columns : Vector (Pair Text Expression)) (context : Context) (alias : Text)
# TODO Dubious constructor export
from project.Internal.IR.Join_Kind import all
from project.Internal.IR.Join_Kind export all
## PRIVATE
The kind of the join operation.
type Join_Kind
## PRIVATE
Inner join.
The result will contain only rows that had a match in both left and right
source.
Join_Inner
## PRIVATE
Left join.
The result will contain all rows from the left source. Some of them may
be duplicated if they have multiple matches on the right. If a row from
the left source has no match on the right, it will be present exactly
once in the result and the fields corresponding to the right source will
be set to NULL.
Join_Left
## PRIVATE
Right join.
The result will contain all rows from the right source. Some of them may
be duplicated if they have multiple matches on the left. If a row from
the right source has no match on the left, it will be present exactly
once in the result and the fields corresponding to the left source will
be set to NULL.
Join_Right
## PRIVATE
Cross join.
The result will contain a cross product of rows from the left source with
the right source. Its `on` list should be empty, instead `where_filters`
in the query can be used to filter the results.
Join_Cross
# TODO Dubious constructor export
from project.Internal.IR.Order_Descriptor import all
from project.Internal.IR.Order_Descriptor export all
## PRIVATE
type Order_Descriptor
Order_Descriptor_Data (expression : Expression) (direction : Sort_Direction) (nulls_order : Nothing | Nulls_Order = Nothing) (collation : Nothing | Text = Nothing)
# TODO Dubious constructor export
from project.Internal.IR.Nulls_Order import all
from project.Internal.IR.Nulls_Order export all
## PRIVATE
Specifies how null values should be handled within the ordering.
type Nulls_Order
## PRIVATE
Null values are included before any other values in the ordering.
Nulls_First
## PRIVATE
Null values are included after all other values in the ordering.
Nulls_Last
# TODO Dubious constructor export
from project.Internal.IR.Query import all
from project.Internal.IR.Query export all
## PRIVATE
Describes a full SQL query.
type Query
## PRIVATE
A Select SQL query.
Arguments:
- expressions: List of pairs specifying the columns to materialize; each
is a pair whose first element is the name of the materialized column
and the second element is the expression to compute.
- context: The query context, see `Context` for more detail.
Select (expressions : Vector (Pair Text Expression)) (context : Context)
## PRIVATE
A Select SQL query that gets all columns in a table.
Arguments:
- context: The query context, see `Context` for more detail.
Select_All context
## PRIVATE
An Insert SQL query that inserts a single row to the table.
Arguments:
- table_name: The name of the table to insert to.
- pairs: A list of pairs consisting of a column name and and expression.
Insert table_name pairs
## PRIVATE
Creates a query context that just fetches data from a table, without any
additional processing.
Arguments:
- table_name: The name of the table for which the context is being created.
- alias: An alias name to use for table within the query.
context_for_table : Text -> Text -> Context
context_for_table table_name alias=table_name =
Context_Data (From_Table table_name alias) [] [] [] [] Nothing
## PRIVATE
Creates a query context that runs a raw SQL query.
Arguments:
- raw_sql: The name of the table for which the context is being created.
- alias: An alias name to use for table within the query.
context_for_query : Text -> Text -> Context
context_for_query raw_sql alias =
Context_Data (From_Query raw_sql alias) [] [] [] [] Nothing
## PRIVATE
Creates a Context from a Sub_Query.
Arguments:
- subquery: The subquery to lift into a context.
subquery_as_ctx : Sub_Query -> Context
subquery_as_ctx subquery =
Context_Data subquery [] [] [] [] Nothing
## PRIVATE
Creates an expression which is a simple constant to be interpolated.
Arguments:
- sql_type: The SQL type of the value.
- x: The value to turn into a constant.
make_constant : SQL_Type -> Any -> Expression
make_constant sql_type x =
Constant sql_type x
## PRIVATE
A helper function to subsitute names tables inside of expressions.
Arguments:
- old_origin: The old table name.
- new_origin: The new table name.
- expr: The expression in which the substitution should be performed.
It is used for example when renaming a table during a join.
substitute_origin : Text -> Text -> Expression -> Expression
substitute_origin old_origin new_origin expr = case expr of
Column origin name ->
if origin == old_origin then Column new_origin name else expr
Constant _ _ -> expr
Operation kind exprs ->
Operation kind (exprs.map (substitute_origin old_origin new_origin))
## PRIVATE
Lifts a function mapping expressions into a function mapping internal columns
which applies the original function to their expressions, leaving other
fields as-is.
Arguments:
- f: The function to map over expressions.
- col: The column over which to apply `f`.
lift_expression_map : (Expression -> Expression) -> Internal_Column -> Internal_Column
lift_expression_map f col =
Internal_Column_Data col.name col.sql_type (f col.expression)

164
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@ -0,0 +1,164 @@
from Standard.Base import all
import project.Internal.IR.Expression.Expression
import project.Internal.IR.From_Spec.From_Spec
import project.Internal.IR.Internal_Column.Internal_Column
import project.Internal.IR.Order_Descriptor.Order_Descriptor
## PRIVATE
A context associated with an SQL query.
type Context
## PRIVATE
Creates a query context that just fetches data from a table, without any
additional processing.
Arguments:
- table_name: The name of the table for which the context is being created.
- alias: An alias name to use for table within the query.
for_table : Text -> Text -> Context
for_table table_name alias=table_name =
Context.Value (From_Spec.From_Table table_name alias) [] [] [] [] Nothing
## PRIVATE
Creates a query context that runs a raw SQL query.
Arguments:
- raw_sql: The name of the table for which the context is being created.
- alias: An alias name to use for table within the query.
for_query : Text -> Text -> Context
for_query raw_sql alias =
Context.Value (From_Spec.From_Query raw_sql alias) [] [] [] [] Nothing
## PRIVATE
Creates a Context from a Sub_Query.
Arguments:
- subquery: The subquery to lift into a context.
for_subquery : Sub_Query -> Context
for_subquery subquery =
Context.Value subquery [] [] [] [] Nothing
## PRIVATE
A context associated with an SQL query.
The expressions can only be computed in a context which specifies from where
their columns come and set filters and other settings for processing the
query.
Arguments:
- from_spec: the sources for the query, see `From_Spec` for more
details.
- where_filters: a list of expressions for filtering - only the rows
for which these expressions evaluate to true are included in the
result.
- orders: a list of ordering expressions, for each entry an ORDER BY
clause is added.
- groups: a list of grouping expressions, for each entry a GROUP BY is
added, the resulting query can then directly include only the
grouped-by columns or aggregate expressions.
- meta_index: a list of internal columns to use for joining or grouping.
- limit: an optional maximum number of elements that the equery should
return.
Value (from_spec : From_Spec) (where_filters : Vector Expression) (orders : Vector Order_Descriptor) (groups : Vector Expression) (meta_index : Vector Internal_Column) (limit : Nothing | Integer)
## PRIVATE
Returns a copy of the context with changed `meta_index`.
Arguments:
- new_index: The new index to set in the query.
set_index : Vector Internal_Column -> Context
set_index self new_index =
Context.Value self.from_spec self.where_filters self.orders self.groups new_index self.limit
## PRIVATE
Returns a copy of the context with changed `where_filters`.
Arguments:
- new_filters: The new filters to set in the query.
set_where_filters : Vector Expression -> Context
set_where_filters self new_filters =
Context.Value self.from_spec new_filters self.orders self.groups self.meta_index self.limit
## PRIVATE
Returns a copy of the context with changed `orders`.
Arguments:
- new_orders: The new ordering clauses to set in the query.
set_orders : Vector Order_Descriptor -> Context
set_orders self new_orders =
Context.Value self.from_spec self.where_filters new_orders self.groups self.meta_index self.limit
## PRIVATE
Returns a copy of the context with added `orders`.
The orderings are modified in such a way that the newly added ordering
takes precedence, but if any orderings were already present they are also
taken into account to break ties within the new ordering.
In practice this means, that the old orderings are preserved, but the new
ones are added to the beginning of the list so that they take precedence.
Arguments:
- new_orders: The new ordering clauses to add to the query.
add_orders : Vector Order_Descriptor -> Context
add_orders self new_orders =
Context.Value self.from_spec self.where_filters new_orders+self.orders self.groups self.meta_index self.limit
## PRIVATE
Returns a copy of the context with changed `groups`.
Arguments:
- new_groups: The new grouping clauses to set in the query.
set_groups : Vector Expression -> Context
set_groups self new_groups =
Context.Value self.from_spec self.where_filters self.orders new_groups self.meta_index self.limit
## PRIVATE
Returns a copy of the context with changed `limit`.
Arguments:
- new_limit: The new limit clauses to set in the query.
set_limit : (Nothing | Integer) -> Context
set_limit self new_limit =
Context.Value self.from_spec self.where_filters self.orders self.groups self.meta_index new_limit
## PRIVATE
'Lifts' this context into a subquery, so that the original context (with all filters etc.) is
encapsulated within the subquery and all external references passed as the second argument,
refer directly to that subquery.
It takes a list of lists of columns that should be included in that subquery (this can for
example the list of regular columns, the list of indices etc.)
It assumes that columns on these lists all have unique names.
It returns a new context and the lists transformed in such a way that each column corresponds
to one from the original list but it is valid in the new context.
This is useful as a preprocessing step between combining queries, for example in a join.
# as_subquery : Text -> Vector (Vector Internal_Column) -> [From_Spec.Sub_Query, Vector (Vector Internal_Column)]
as_subquery : Text -> Vector Any -> Vector
as_subquery self alias column_lists =
rewrite_internal_column : Internal_Column -> Internal_Column
rewrite_internal_column column =
Internal_Column.Value column.name column.sql_type (Expression.Column alias column.name)
new_columns = column_lists.map columns->
columns.map rewrite_internal_column
encapsulated_columns = column_lists.flat_map columns->
columns.map column-> [column.name, column.expression]
new_from = From_Spec.Sub_Query encapsulated_columns self alias
[new_from, new_columns]

46
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@ -0,0 +1,46 @@
from Standard.Base import all
import project.Data.SQL_Type.SQL_Type
## PRIVATE
The internal representation of an SQL expression which can be a column
reference, an interpolated constant or an operation that combines other
expressions.
type Expression
## PRIVATE
The internal representation of an SQL expression that gets a value from a
column.
Arguments:
- origin: the name of the entity (table or sub-query) that this column
originates from, it corresponds to the `alias` field in `from_spec`.
- name: the name of the column directly in the table or its alias in a
sub-query.
Column (origin : Text) (name : Text)
## PRIVATE
The internal representation of an SQL expression which is a constant to
be interpolated when building the query.
Arguments:
- sql_type: The SQL type that this object is going to be serialized to.
It is usually inferred from the expression's context.
- value: the value to be interpolated; it should be a simple Number, Text
or other types that are serializable for JDBC.
Constant (sql_type : SQL_Type) (value : Any)
## PRIVATE
The internal representation of an SQL expression built from an operation
and sub-expressions.
Arguments:
- kind: the name of the operation, these can be both functions or infix
operators, the actual implementation is determined by a specific
dialect.
- expressions: a list of expressions which are arguments to the operation
different operations support different amounts of arguments.
Operation (kind : Text) (expressions : Vector Expression)

60
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/IR/From_Spec.enso Normal file
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@ -0,0 +1,60 @@
from Standard.Base import all
import project.Internal.IR.Context.Context
import project.Internal.IR.Expression.Expression
import project.Internal.IR.Join_Kind.Join_Kind
## PRIVATE
Used as part of the context, specifies the sources of the query.
type From_Spec
## PRIVATE
A query source that takes data directly from a table in the
database.
Arguments:
- table_name: the full name identifying the table in the database.
- alias: the name upon which the table can be referred to in other
parts of the query, this is especially useful for example in
self-joins, allowing to differentiate between different instances of
the same table.
From_Table (table_name : Text) (alias : Text)
## PRIVATE
A query source that holds a raw SQL statement.
Arguments:
- raw_sql: the raw SQL code of a query used as a source for this table.
- alias: the name upon which the table can be referred to in other
parts of the query, this is especially useful for example in
self-joins, allowing to differentiate between different instances of
the same table.
From_Query (raw_sql : Text) (alias : Text)
## PRIVATE
A query source that performs a join operation on two sources.
Arguments:
- kind: the kind of the join.
- left_spec: the left data source to be joined
- right_spec: the right data source to be joined
- on: a list of expressions that will be used as join conditions, these
are usually be equalities between expressions from the left and right
sources.
Join (kind : Join_Kind) (left_spec : From_Spec) (right_spec : From_Spec) (on : Vector Expression)
## PRIVATE
A query source consisting of a sub-query.
Arguments:
- columns: a list of pairs; each first element is the alias for the
column created in the sub-query and the second element is the
expression to be computed.
- context: the context for the sub-query.
- alias: the name upon which the results of this sub-query can be
referred to in other parts of the query.
Sub_Query (columns : Vector (Pair Text Expression)) (context : Context) (alias : Text)

24
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/IR/Internal_Column.enso Normal file
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@ -0,0 +1,24 @@
from Standard.Base import all
import project.Data.SQL_Type.SQL_Type
import project.Internal.IR.Expression.Expression
type Internal_Column
## PRIVATE
An internal column structure.
Arguments:
- name: The column name.
- sql_type: The SQL type of the column.
- expression: An expression for applying to the column.
Value name:Text sql_type:SQL_Type expression:Expression
## PRIVATE
Rename the internal column.
Arguments:
- new_name: The new name for the column.
rename : Text -> Internal_Column
rename self new_name = Internal_Column.Value new_name self.sql_type self.expression

44
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/IR/Join_Kind.enso Normal file
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@ -0,0 +1,44 @@
from Standard.Base import all
## PRIVATE
The kind of the join operation.
type Join_Kind
## PRIVATE
Inner join.
The result will contain only rows that had a match in both left and right
source.
Inner
## PRIVATE
Left join.
The result will contain all rows from the left source. Some of them may
be duplicated if they have multiple matches on the right. If a row from
the left source has no match on the right, it will be present exactly
once in the result and the fields corresponding to the right source will
be set to NULL.
Left
## PRIVATE
Right join.
The result will contain all rows from the right source. Some of them may
be duplicated if they have multiple matches on the left. If a row from
the right source has no match on the left, it will be present exactly
once in the result and the fields corresponding to the left source will
be set to NULL.
Right
## PRIVATE
Cross join.
The result will contain a cross product of rows from the left source with
the right source. Its `on` list should be empty, instead `where_filters`
in the query can be used to filter the results.
Cross

16
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/IR/Nulls_Order.enso Normal file
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@ -0,0 +1,16 @@
from Standard.Base import all
## PRIVATE
Specifies how null values should be handled within the ordering.
type Nulls_Order
## PRIVATE
Null values are included before any other values in the ordering.
First
## PRIVATE
Null values are included after all other values in the ordering.
Last

8
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/IR/Order_Descriptor.enso Normal file
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@ -0,0 +1,8 @@
from Standard.Base import all
import project.Internal.IR.Expression.Expression
import project.Internal.IR.Nulls_Order.Nulls_Order
## PRIVATE
type Order_Descriptor
Value (expression : Expression) (direction : Sort_Direction) (nulls_order : Nothing | Nulls_Order = Nothing) (collation : Nothing | Text = Nothing)

37
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/IR/Query.enso Normal file
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@ -0,0 +1,37 @@
from Standard.Base import all
import project.Internal.IR.Context.Context
import project.Internal.IR.Expression.Expression
## PRIVATE
Describes a full SQL query.
type Query
## PRIVATE
A Select SQL query.
Arguments:
- expressions: List of pairs specifying the columns to materialize; each
is a pair whose first element is the name of the materialized column
and the second element is the expression to compute.
- context: The query context, see `Context` for more detail.
Select (expressions : Vector (Pair Text Expression)) (context : Context)
## PRIVATE
A Select SQL query that gets all columns in a table.
Arguments:
- context: The query context, see `Context` for more detail.
Select_All context
## PRIVATE
An Insert SQL query that inserts a single row to the table.
Arguments:
- table_name: The name of the table to insert to.
- pairs: A list of pairs consisting of a column name and and expression.
Insert table_name pairs

37
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/JDBC_Connection.enso
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@ -1,15 +1,18 @@
from Standard.Base import all
import Standard.Base.Runtime.Resource
from Standard.Base.Runtime.Resource import Managed_Resource
import Standard.Database.Data.SQL
from Standard.Database.Data.SQL import SQL_Type, SQL_Type_Data, Statement, Statement_Data
from Standard.Database.Errors import SQL_Error, SQL_Error_Data, SQL_Timeout_Error, SQL_Timeout_Error_Data
import Standard.Database.Internal.Base_Generator
import Standard.Table.Data.Storage.Storage
import Standard.Database.Data.Table as Database_Table
import Standard.Table.Data.Table as Materialized_Table
import Standard.Table.Data.Table.Table as Materialized_Table
import project.Data.SQL
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Internal.Base_Generator
import project.Data.Table.Table as Database_Table
from project.Errors import SQL_Error, SQL_Error_Data, SQL_Timeout_Error, SQL_Timeout_Error_Data
polyglot java import java.util.Properties
@ -20,13 +23,9 @@ polyglot java import java.sql.SQLTimeoutException
polyglot java import org.enso.database.JDBCProxy
# TODO Dubious constructor export
from project.Internal.JDBC_Connection.JDBC_Connection import all
from project.Internal.JDBC_Connection.JDBC_Connection export all
type JDBC_Connection
## PRIVATE
JDBC_Connection_Data connection_resource
Value connection_resource
## PRIVATE
Closes the connection releasing the underlying database resources
@ -61,7 +60,7 @@ type JDBC_Connection
Runs the provided action with a prepared statement, adding contextual
information to any thrown SQL errors.
with_prepared_statement : Text | Statement -> (PreparedStatement -> Any) -> Any
with_prepared_statement : Text | SQL_Statement -> (PreparedStatement -> Any) -> Any
with_prepared_statement self query action =
prepare template holes = self.connection_resource.with java_connection->
stmt = java_connection.prepareStatement template
@ -76,7 +75,7 @@ type JDBC_Connection
case query of
_ : Text -> go query []
Statement_Data _ ->
SQL_Statement.Value _ ->
compiled = query.prepare
go compiled.first compiled.second
@ -84,7 +83,7 @@ type JDBC_Connection
Given a prepared statement, gets the column names and types for the
result set.
fetch_columns : Text | Statement -> Any
fetch_columns : Text | SQL_Statement -> Any
fetch_columns self statement =
self.with_prepared_statement statement stmt->
metadata = stmt.executeQuery.getMetaData
@ -93,7 +92,7 @@ type JDBC_Connection
name = metadata.getColumnName ix+1
typeid = metadata.getColumnType ix+1
typename = metadata.getColumnTypeName ix+1
[name, SQL_Type_Data typeid typename]
[name, SQL_Type.Value typeid typename]
Vector.new metadata.getColumnCount resolve_column
@ -101,7 +100,7 @@ type JDBC_Connection
Given an insert query template and the associated Database_Table, and a
Materialized_Table of data, load to the database.
load_table : Text -> Database_Table.Table -> Materialized_Table.Table -> Integer -> Nothing
load_table : Text -> Database_Table -> Materialized_Table -> Integer -> Nothing
load_table self insert_template db_table table batch_size =
db_types = db_table.internal_columns.map .sql_type
self.with_connection java_connection->
@ -142,7 +141,7 @@ create url properties = handle_sql_errors <|
java_connection = JDBCProxy.getConnection url java_props
resource = Managed_Resource.register java_connection close_connection
JDBC_Connection_Data resource
JDBC_Connection.Value resource
## PRIVATE
@ -182,7 +181,7 @@ set_statement_values stmt holes =
## PRIVATE
Given a Materialized_Table, create a SQL statement to build the table.
create_table_statement : Text -> Materialized_Table.Table -> Boolean -> Statement
create_table_statement : Text -> Materialized_Table -> Boolean -> SQL_Statement
create_table_statement name table temporary =
column_types = table.columns.map col-> default_storage_type col.storage_type
column_names = table.columns.map .name

8
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/Postgres/Pgpass.enso
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@ -35,13 +35,9 @@ read host port database username=Nothing =
Nothing -> []
entry -> [Pair_Data 'user' entry.username, Pair_Data 'password' entry.password]
# TODO Dubious constructor export
from project.Internal.Postgres.Pgpass.Pgpass_Entry import all
from project.Internal.Postgres.Pgpass.Pgpass_Entry export all
type Pgpass_Entry
## PRIVATE
Pgpass_Entry_Data host port database username password
Value host port database username password
## PRIVATE
matches : Text -> Text|Integer -> Text -> Text -> Boolean
@ -88,7 +84,7 @@ parse_file file =
if line.starts_with "#" || line.is_empty then Nothing else
elements = parse_line line
if elements.length != 5 then Nothing else
Pgpass_Entry_Data (elements.at 0) (elements.at 1) (elements.at 2) (elements.at 3) (elements.at 4)
Pgpass_Entry.Value (elements.at 0) (elements.at 1) (elements.at 2) (elements.at 3) (elements.at 4)
File.read_text file . lines . map parse . filter (x -> x.is_nothing.not)

42
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/Postgres/Postgres_Connection.enso
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@ -1,22 +1,18 @@
from Standard.Base import all
from Standard.Database.Data.SQL import SQL_Type, Statement
import Standard.Database.Data.SQL_Query
import Standard.Table.Data.Table.Table as Materialized_Table
import Standard.Database.Internal.JDBC_Connection
import Standard.Database.Data.Dialect
from Standard.Database.Connection.Connection import Connection_Data
import project.Connection.Connection.Connection
import project.Data.Dialect
import project.Data.SQL_Query.SQL_Query
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Data.Table.Table as Database_Table
import project.Internal.JDBC_Connection
import Standard.Database.Data.Table as Database_Table
import Standard.Table.Data.Table as Materialized_Table
from project.Internal.Result_Set import read_column
from Standard.Database.Errors import SQL_Error
from Standard.Database.Internal.Result_Set import read_column
# TODO Dubious constructor export
from project.Internal.Postgres.Postgres_Connection.Postgres_Connection import all
from project.Internal.Postgres.Postgres_Connection.Postgres_Connection export all
from project.Errors import SQL_Error
type Postgres_Connection
@ -27,7 +23,7 @@ type Postgres_Connection
Arguments:
- connection: the underlying connection.
- make_new: a function that returns a new connection.
Postgres_Connection_Data connection make_new
Value connection make_new
## Closes the connection releasing the underlying database resources
immediately instead of waiting for them to be automatically released.
@ -85,7 +81,7 @@ type Postgres_Connection
- schema: The schema name to search in (defaults to current schema).
- types: The table types to search for. The list of values can be obtained using the `table_types` method.
- all_fields: Return all the fields in the metadata table.
tables : Text -> Text -> Text -> Vector -> Boolean -> Materialized_Table.Table
tables : Text -> Text -> Text -> Vector -> Boolean -> Materialized_Table
tables self name_like=Nothing database=self.database schema=self.schema types=Nothing all_fields=False =
self.connection.tables name_like database schema types all_fields
@ -95,7 +91,7 @@ type Postgres_Connection
- query: name of the table or sql statement to query.
If supplied as `Text`, the name is checked against the `tables` list to determine if it is a table or a query.
- alias: optionally specify a friendly alias for the query.
query : Text | SQL_Query -> Text -> Database_Table.Table
query : Text | SQL_Query -> Text -> Database_Table
query self query alias="" = self.connection.query query alias
## Execute the query and load the results into memory as a Table.
@ -104,12 +100,12 @@ type Postgres_Connection
- query: name of the table or sql statement to query.
If supplied as `Text`, the name is checked against the `tables` list to determine if it is a table or a query.
- limit: the maximum number of rows to return.
read : Text | SQL_Query -> Integer | Nothing -> Materialized_Table.Table
read : Text | SQL_Query -> Integer | Nothing -> Materialized_Table
read self query limit=Nothing = self.connection.read query limit
## PRIVATE
Internal read function for a statement with optional types.
read_statement : Statement -> (Nothing | Vector SQL_Type) -> Materialized_Table.Table
read_statement : SQL_Statement -> (Nothing | Vector SQL_Type) -> Materialized_Table
read_statement self statement expected_types=Nothing =
self.connection.read_statement statement expected_types
@ -120,9 +116,9 @@ type Postgres_Connection
returns 0 for other types of queries (like creating or altering tables).
Arguments:
- query: either raw SQL code as Text or an instance of Statement
- query: either raw SQL code as Text or an instance of SQL_Statement
representing the query to execute.
execute_update : Text | Statement -> Integer
execute_update : Text | SQL_Statement -> Integer
execute_update self query =
self.connection.execute_update query
@ -143,7 +139,7 @@ type Postgres_Connection
usually not be visible to other connections.
- batch_size: Specifies how many rows should be uploaded in a single
batch.
upload_table : Text -> Materialized_Table.Table -> Boolean -> Integer -> Database_Table.Table
upload_table : Text -> Materialized_Table -> Boolean -> Integer -> Database_Table
upload_table self name table temporary=True batch_size=1000 = Panic.recover Illegal_State_Error <|
self.connection.upload_table name table temporary batch_size
@ -158,4 +154,4 @@ type Postgres_Connection
create : Text -> Vector -> (Text -> Text -> Postgres_Connection) -> Postgres_Connection
create url properties make_new =
jdbc_connection = JDBC_Connection.create url properties
Postgres_Connection_Data (Connection_Data jdbc_connection Dialect.postgres) make_new
Postgres_Connection.Value (Connection.Value jdbc_connection Dialect.postgres) make_new

50
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/Postgres/Postgres_Dialect.enso
View File

@ -1,24 +1,26 @@
from Standard.Base import all hiding First, Last
import Standard.Base.Error.Common as Errors
from Standard.Table.Data.Aggregate_Column.Aggregate_Column import all
from Standard.Database.Data.SQL import SQL_Type, Statement, code
import Standard.Database.Data.SQL
import Standard.Database.Data.Dialect
import Standard.Database.Internal.Base_Generator
import Standard.Database.Internal.IR
from Standard.Database.Errors import Unsupported_Database_Operation_Error
import project.Data.SQL
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Internal.Base_Generator
import project.Internal.IR.Expression.Expression
import project.Internal.IR.Internal_Column.Internal_Column
import project.Internal.IR.Order_Descriptor.Order_Descriptor
import project.Internal.IR.Nulls_Order.Nulls_Order
from project.Data.SQL import code
from project.Errors import Unsupported_Database_Operation_Error
## PRIVATE
The dialect of PostgreSQL databases.
postgres : Dialect
postgres : Postgres_Dialect
postgres =
Postgres_Dialect_Data make_internal_generator_dialect
# TODO Dubious constructor export
from project.Internal.Postgres.Postgres_Dialect.Postgres_Dialect import all
from project.Internal.Postgres.Postgres_Dialect.Postgres_Dialect export all
Postgres_Dialect.Value make_internal_generator_dialect
## PRIVATE
@ -27,7 +29,7 @@ type Postgres_Dialect
## PRIVATE
The dialect of PostgreSQL databases.
Postgres_Dialect_Data internal_generator_dialect
Value internal_generator_dialect
## PRIVATE
Name of the dialect.
@ -37,7 +39,7 @@ type Postgres_Dialect
## PRIVATE
A function which generates SQL code from the internal representation
according to the specific dialect.
generate_sql : Query -> Statement
generate_sql : Query -> SQL_Statement
generate_sql self query =
Base_Generator.generate_query self.internal_generator_dialect query . build
@ -54,7 +56,7 @@ type Postgres_Dialect
One of the purposes of this method is to verify if the expected ordering
settings are supported by the given database backend.
prepare_order_descriptor : IR.Internal_Column -> Sort_Direction -> Text_Ordering -> IR.Order_Descriptor
prepare_order_descriptor : Internal_Column -> Sort_Direction -> Text_Ordering -> Order_Descriptor
prepare_order_descriptor self internal_column sort_direction text_ordering =
make_order_descriptor internal_column sort_direction text_ordering
@ -225,23 +227,23 @@ contains = Base_Generator.lift_binary_op "contains" make_contains_expr
## PRIVATE
make_order_descriptor internal_column sort_direction text_ordering =
nulls = case sort_direction of
Sort_Direction.Ascending -> IR.Nulls_First
Sort_Direction.Descending -> IR.Nulls_Last
Sort_Direction.Ascending -> Nulls_Order.First
Sort_Direction.Descending -> Nulls_Order.Last
case internal_column.sql_type.is_likely_text of
True ->
## In the future we can modify this error to suggest using a custom defined collation.
if text_ordering.sort_digits_as_numbers then Error.throw (Unsupported_Database_Operation_Error "Natural ordering is currently not supported. You may need to materialize the Table to perform this operation.") else
case text_ordering.case_sensitivity of
Nothing ->
IR.Order_Descriptor_Data internal_column.expression sort_direction nulls_order=nulls collation=Nothing
Order_Descriptor.Value internal_column.expression sort_direction nulls_order=nulls collation=Nothing
Case_Sensitivity.Sensitive ->
IR.Order_Descriptor_Data internal_column.expression sort_direction nulls_order=nulls collation="ucs_basic"
Order_Descriptor.Value internal_column.expression sort_direction nulls_order=nulls collation="ucs_basic"
Case_Sensitivity.Insensitive locale -> case locale == Locale.default of
False ->
Error.throw (Unsupported_Database_Operation_Error "Case insensitive ordering with custom locale is currently not supported. You may need to materialize the Table to perform this operation.")
True ->
upper = IR.Operation "UPPER" [internal_column.expression]
folded_expression = IR.Operation "LOWER" [upper]
IR.Order_Descriptor_Data folded_expression sort_direction nulls_order=nulls collation=Nothing
upper = Expression.Operation "UPPER" [internal_column.expression]
folded_expression = Expression.Operation "LOWER" [upper]
Order_Descriptor.Value folded_expression sort_direction nulls_order=nulls collation=Nothing
False ->
IR.Order_Descriptor_Data internal_column.expression sort_direction nulls_order=nulls collation=Nothing
Order_Descriptor.Value internal_column.expression sort_direction nulls_order=nulls collation=Nothing

25
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/Redshift/Redshift_Dialect.enso
View File

@ -2,21 +2,20 @@ from Standard.Base import all
from Standard.Table import Aggregate_Column
from Standard.Database.Data.SQL import SQL_Type, Statement
import Standard.Database.Data.Dialect
import Standard.Database.Internal.Postgres.Postgres_Dialect
import Standard.Database.Internal.Base_Generator
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Internal.Base_Generator
import project.Internal.IR.Internal_Column.Internal_Column
import project.Internal.IR.Order_Descriptor.Order_Descriptor
import project.Internal.Postgres.Postgres_Dialect
## PRIVATE
The dialect for Redshift connections.
redshift : Dialect
redshift : Redshift_Dialect
redshift =
Redshift_Dialect_Data Postgres_Dialect.make_internal_generator_dialect
# TODO Dubious constructor export
from project.Internal.Redshift.Redshift_Dialect.Redshift_Dialect import all
from project.Internal.Redshift.Redshift_Dialect.Redshift_Dialect export all
Redshift_Dialect.Value Postgres_Dialect.make_internal_generator_dialect
## PRIVATE
@ -25,7 +24,7 @@ type Redshift_Dialect
## PRIVATE
The dialect for Redshift connections.
Redshift_Dialect_Data internal_generator_dialect
Value internal_generator_dialect
## PRIVATE
Name of the dialect.
@ -35,7 +34,7 @@ type Redshift_Dialect
## PRIVATE
A function which generates SQL code from the internal representation
according to the specific dialect.
generate_sql : Query -> Statement
generate_sql : Query -> SQL_Statement
generate_sql self query =
Base_Generator.generate_query self.internal_generator_dialect query . build
@ -53,6 +52,6 @@ type Redshift_Dialect
One of the purposes of this method is to verify if the expected ordering
settings are supported by the given database backend.
prepare_order_descriptor : IR.Internal_Column -> Sort_Direction -> Text_Ordering -> IR.Order_Descriptor
prepare_order_descriptor : Internal_Column -> Sort_Direction -> Text_Ordering -> Order_Descriptor
prepare_order_descriptor self internal_column sort_direction text_ordering =
Postgres_Dialect.make_order_descriptor internal_column sort_direction text_ordering

15
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/Result_Set.enso
View File

@ -1,9 +1,10 @@
from Standard.Base import all
import Standard.Table.Data.Table as Materialized_Table
import Standard.Table.Data.Column as Materialized_Column
import Standard.Table.Data.Table.Table as Materialized_Table
import Standard.Table.Data.Column.Column as Materialized_Column
import Standard.Table.Internal.Java_Exports
from Standard.Database.Data.SQL import SQL_Type, SQL_Type_Data
import project.Data.SQL_Type.SQL_Type
polyglot java import java.sql.ResultSet
@ -24,7 +25,7 @@ read_column result_set column_name =
## PRIVATE
Converts a ResultSet into a Materialized_Table.
result_set_to_table : ResultSet -> (Vector | Nothing) -> Materialized_Table.Table
result_set_to_table : ResultSet -> (Vector | Nothing) -> Materialized_Table
result_set_to_table result_set expected_types=Nothing =
metadata = result_set.getMetaData
ncols = metadata.getColumnCount
@ -33,7 +34,7 @@ result_set_to_table result_set expected_types=Nothing =
Vector.new ncols ix->
typeid = metadata.getColumnType ix+1
name = metadata.getColumnTypeName ix+1
SQL_Type_Data typeid name
SQL_Type.Value typeid name
column_builders = column_types.map typ->
create_builder typ
go has_next = if has_next.not then Nothing else
@ -43,7 +44,7 @@ result_set_to_table result_set expected_types=Nothing =
go result_set.next
columns = column_builders.zip column_names builder-> name->
builder.make_column name
Materialized_Table.Table.new columns
Materialized_Table.new columns
## PRIVATE
@ -130,7 +131,7 @@ type Builder
Argument:
- name: The name of the column.
make_column : Text -> Materialized_Column.Column
make_column : Text -> Materialized_Column
make_column self name =
storage = self.java_builder.seal
Java_Exports.make_column name storage

40
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/SQLite/SQLite_Connection.enso
View File

@ -1,20 +1,16 @@
from Standard.Base import all
from Standard.Database.Data.SQL import SQL_Type, Statement
import Standard.Database.Data.SQL_Query
import Standard.Table.Data.Table.Table as Materialized_Table
import Standard.Database.Internal.JDBC_Connection
import Standard.Database.Data.Dialect
from Standard.Database.Connection.Connection import Connection_Data
import project.Data.SQL_Query.SQL_Query
import project.Data.SQL_Type.SQL_Type
import project.Internal.JDBC_Connection
import project.Data.Dialect
import project.Connection.Connection.Connection
import project.Data.Table.Table as Database_Table
import Standard.Database.Data.Table as Database_Table
import Standard.Table.Data.Table as Materialized_Table
from Standard.Database.Errors import SQL_Error
# TODO Dubious constructor export
from project.Internal.SQLite.SQLite_Connection.SQLite_Connection import all
from project.Internal.SQLite.SQLite_Connection.SQLite_Connection export all
import project.Data.SQL_Statement.SQL_Statement
from project.Errors import SQL_Error
type SQLite_Connection
## PRIVATE
@ -23,7 +19,7 @@ type SQLite_Connection
Arguments:
- connection: the underlying connection.
SQLite_Connection_Data connection
Value connection
## Closes the connection releasing the underlying database resources
immediately instead of waiting for them to be automatically released.
@ -78,7 +74,7 @@ type SQLite_Connection
- schema: The schema name to search in (defaults to current schema).
- types: The table types to search for. The list of values can be obtained using the `table_types` method.
- all_fields: Return all the fields in the metadata table.
tables : Text -> Text -> Text -> Vector -> Boolean -> Materialized_Table.Table
tables : Text -> Text -> Text -> Vector -> Boolean -> Materialized_Table
tables self name_like=Nothing database=self.database schema=self.schema types=Nothing all_fields=False =
self.connection.tables name_like database schema types all_fields
@ -88,7 +84,7 @@ type SQLite_Connection
- query: name of the table or sql statement to query.
If supplied as `Text`, the name is checked against the `tables` list to determine if it is a table or a query.
- alias: optionally specify a friendly alias for the query.
query : Text | SQL_Query -> Text -> Database_Table.Table
query : Text | SQL_Query -> Text -> Database_Table
query self query alias="" = self.connection.query query alias
## Execute the query and load the results into memory as a Table.
@ -97,12 +93,12 @@ type SQLite_Connection
- query: name of the table or sql statement to query.
If supplied as `Text`, the name is checked against the `tables` list to determine if it is a table or a query.
- limit: the maximum number of rows to return.
read : Text | SQL_Query -> Integer | Nothing -> Materialized_Table.Table
read : Text | SQL_Query -> Integer | Nothing -> Materialized_Table
read self query limit=Nothing = self.connection.read query limit
## PRIVATE
Internal read function for a statement with optional types.
read_statement : Statement -> (Nothing | Vector SQL_Type) -> Materialized_Table.Table
read_statement : SQL_Statement -> (Nothing | Vector SQL_Type) -> Materialized_Table
read_statement self statement expected_types=Nothing =
self.connection.read_statement statement expected_types
@ -113,9 +109,9 @@ type SQLite_Connection
returns 0 for other types of queries (like creating or altering tables).
Arguments:
- query: either raw SQL code as Text or an instance of Statement
- query: either raw SQL code as Text or an instance of SQL_Statement
representing the query to execute.
execute_update : Text | Statement -> Integer
execute_update : Text | SQL_Statement -> Integer
execute_update self query =
self.connection.execute_update query
@ -136,7 +132,7 @@ type SQLite_Connection
usually not be visible to other connections.
- batch_size: Specifies how many rows should be uploaded in a single
batch.
upload_table : Text -> Materialized_Table.Table -> Boolean -> Integer -> Database_Table.Table
upload_table : Text -> Materialized_Table -> Boolean -> Integer -> Database_Table
upload_table self name table temporary=True batch_size=1000 = Panic.recover Illegal_State_Error <|
self.connection.upload_table name table temporary batch_size
@ -150,4 +146,4 @@ type SQLite_Connection
create : Text -> Vector -> SQLite_Connection
create url properties =
jdbc_connection = JDBC_Connection.create url properties
SQLite_Connection_Data (Connection_Data jdbc_connection Dialect.sqlite)
SQLite_Connection.Value (Connection.Value jdbc_connection Dialect.sqlite)

38
distribution/lib/Standard/Database/0.0.0-dev/src/Internal/SQLite/SQLite_Dialect.enso
View File

@ -1,23 +1,23 @@
from Standard.Base import all hiding First, Last
from Standard.Table.Data.Aggregate_Column.Aggregate_Column import all
import Standard.Database.Data.SQL
from Standard.Database.Data.SQL import SQL_Type, Statement, code
import Standard.Database.Data.Dialect
import Standard.Database.Internal.Base_Generator
import Standard.Database.Internal.IR
from Standard.Database.Errors import Unsupported_Database_Operation_Error_Data
import project.Data.SQL
import project.Data.SQL_Statement.SQL_Statement
import project.Data.SQL_Type.SQL_Type
import project.Internal.Base_Generator
import project.Internal.IR.Internal_Column.Internal_Column
import project.Internal.IR.Order_Descriptor.Order_Descriptor
from project.Data.SQL import code
from project.Errors import Unsupported_Database_Operation_Error_Data
## PRIVATE
The dialect of SQLite databases.
sqlite : Dialect
sqlite : SQLite_Dialect
sqlite =
SQLite_Dialect_Data make_internal_generator_dialect
# TODO Dubious constructor export
from project.Internal.SQLite.SQLite_Dialect.SQLite_Dialect import all
from project.Internal.SQLite.SQLite_Dialect.SQLite_Dialect export all
SQLite_Dialect.Value make_internal_generator_dialect
## PRIVATE
@ -26,7 +26,7 @@ type SQLite_Dialect
## PRIVATE
The dialect of SQLite databases.
SQLite_Dialect_Data internal_generator_dialect
Value internal_generator_dialect
## PRIVATE
Name of the dialect.
@ -36,7 +36,7 @@ type SQLite_Dialect
## PRIVATE
A function which generates SQL code from the internal representation
according to the specific dialect.
generate_sql : Query -> Statement
generate_sql : Query -> SQL_Statement
generate_sql self query =
Base_Generator.generate_query self.internal_generator_dialect query . build
@ -53,22 +53,22 @@ type SQLite_Dialect
One of the purposes of this method is to verify if the expected ordering
settings are supported by the given database backend.
prepare_order_descriptor : IR.Internal_Column -> Sort_Direction -> Text_Ordering -> IR.Order_Descriptor
prepare_order_descriptor : Internal_Column -> Sort_Direction -> Text_Ordering -> Order_Descriptor
prepare_order_descriptor self internal_column sort_direction text_ordering = case internal_column.sql_type.is_likely_text of
True ->
if text_ordering.sort_digits_as_numbers then Error.throw (Unsupported_Database_Operation_Error_Data "Natural ordering is not supported by the SQLite backend. You may need to materialize the Table to perform this operation.") else
case text_ordering.case_sensitivity of
Nothing ->
IR.Order_Descriptor_Data internal_column.expression sort_direction collation=Nothing
Order_Descriptor.Value internal_column.expression sort_direction collation=Nothing
Case_Sensitivity.Sensitive ->
IR.Order_Descriptor_Data internal_column.expression sort_direction collation="BINARY"
Order_Descriptor.Value internal_column.expression sort_direction collation="BINARY"
Case_Sensitivity.Insensitive locale -> case locale == Locale.default of
False ->
Error.throw (Unsupported_Database_Operation_Error_Data "Case insensitive ordering with custom locale is not supported by the SQLite backend. You may need to materialize the Table to perform this operation.")
True ->
IR.Order_Descriptor_Data internal_column.expression sort_direction collation="NOCASE"
Order_Descriptor.Value internal_column.expression sort_direction collation="NOCASE"
False ->
IR.Order_Descriptor_Data internal_column.expression sort_direction collation=Nothing
Order_Descriptor.Value internal_column.expression sort_direction collation=Nothing
## PRIVATE
make_internal_generator_dialect =

37
distribution/lib/Standard/Database/0.0.0-dev/src/Main.enso
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@ -1,23 +1,24 @@
import Standard.Database.Data.SQL_Query
import Standard.Database.Connection.Database
import project.Connection.Database
import Standard.Database.Connection.Credentials
import Standard.Database.Connection.Client_Certificate
import Standard.Database.Connection.SSL_Mode
import Standard.Database.Connection.Connection_Options
import project.Connection.Credentials.Credentials
import project.Connection.Client_Certificate.Client_Certificate
import project.Connection.SSL_Mode.SSL_Mode
import project.Connection.Connection_Options.Connection_Options
import Standard.Database.Connection.Postgres_Options
import Standard.Database.Connection.SQLite_Options
import Standard.Database.Connection.Redshift_Options
import project.Connection.Postgres_Options
import project.Connection.SQLite_Options
import project.Connection.Redshift_Options
import project.Data.SQL_Query.SQL_Query
export Standard.Database.Connection.SSL_Mode
export project.Connection.Credentials.Credentials
from Standard.Database.Connection.Credentials export Credentials, Username_And_Password
from Standard.Database.Connection.Client_Certificate export Client_Certificate
from Standard.Database.Connection.Connection_Options export Connection_Options
export project.Connection.SSL_Mode.SSL_Mode
export project.Connection.Client_Certificate.Client_Certificate
export project.Connection.Connection_Options.Connection_Options
from Standard.Database.Connection.Database export connect
from Standard.Database.Connection.Postgres_Options export Postgres_Options, Postgres
from Standard.Database.Connection.SQLite_Options export SQLite_Options, SQLite, In_Memory
from Standard.Database.Connection.Redshift_Options export Redshift_Options, Redshift, AWS_Profile, AWS_Key
from Standard.Database.Data.SQL_Query export SQL_Query, Table_Name, Raw_SQL
export project.Connection.Database
export project.Data.SQL_Query.SQL_Query
from project.Connection.Postgres_Options export Postgres_Options, Postgres
from project.Connection.SQLite_Options export SQLite_Options, In_Memory, SQLite
from project.Connection.Redshift_Options export Redshift_Options, Redshift, AWS_Credential

6
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Aggregate_Column.enso
View File

@ -1,8 +1,8 @@
from Standard.Base import all
import Standard.Table.Data.Column.Column
import Standard.Table.Data.Column_Selector.Column_Selector
import Standard.Table.Data.Sort_Column_Selector.Sort_Column_Selector
import project.Data.Column.Column
import project.Data.Column_Selector.Column_Selector
import project.Data.Sort_Column_Selector.Sort_Column_Selector
## Defines an Aggregate Column
type Aggregate_Column

24
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Column.enso
View File

@ -2,10 +2,10 @@ from Standard.Base import all
import Standard.Base.Data.Ordering.Comparator
import Standard.Base.Data.Index_Sub_Range
import Standard.Table.Data.Table.Table
from Standard.Table.Data.Table import print_table
import Standard.Table.Data.Storage.Storage
import Standard.Table.Data.Value_Type.Value_Type
import project.Data.Table.Table
import project.Data.Storage.Storage
import project.Data.Value_Type.Value_Type
from project.Data.Table import print_table
from project.Errors import No_Index_Set_Error
@ -751,7 +751,7 @@ type Column
storage_type : Storage
storage_type self =
tp = self.java_column.getStorage.getType
storage_types.at tp . catch Index_Out_Of_Bounds_Error _->
Storage.types.at tp . catch Index_Out_Of_Bounds_Error _->
Panic.throw (Illegal_State_Error "Unknown storage type: "+tp.to_text)
## UNSTABLE TODO this is a prototype that will be revisited later on
@ -1139,20 +1139,6 @@ run_vectorized_unary_op column name fallback_fn =
rs = s.map name fallback_fn
Column.Column_Data (Java_Column.new "Result" ix rs)
## PRIVATE
Enumerates storage types in a way that is consistent with
`org.enso.table.data.Storage.Storage`, i.e.
`storage_type.at org.enso.table.data.Storage.Storage.LONG` will yield the
corresponding `Storage.Integer`.
storage_types : Vector Storage
storage_types = [Storage.Any, Storage.Integer, Storage.Decimal, Storage.Text, Storage.Boolean, Storage.Date, Storage.Time_Of_Day, Storage.Date_Time]
## PRIVATE
Keep this in sync with `org.enso.table.data.Storage.Storage.STRING`
storage_type_string : Integer
storage_type_string = 3
## PRIVATE
A helper function for converting a column storage to JSON.

7
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Data_Formatter.enso
View File

@ -1,10 +1,9 @@
from Standard.Base import all
import Standard.Base.Error.Common as Errors
import Standard.Table.Data.Column_Type_Selection.Auto
import Standard.Table.Data.Storage.Storage
import Standard.Table.Internal.Parse_Values_Helper
import project.Data.Column_Type_Selection.Auto
import project.Data.Storage.Storage
import project.Internal.Parse_Values_Helper
polyglot java import org.enso.table.parsing.IntegerParser
polyglot java import org.enso.table.parsing.DecimalParser

4
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Sort_Column_Selector.enso
View File

@ -1,7 +1,7 @@
from Standard.Base import all
import Standard.Table.Data.Column.Column
import Standard.Table.Data.Sort_Column.Sort_Column
import project.Data.Column.Column
import project.Data.Sort_Column.Sort_Column
type Sort_Column_Selector
By_Name (columns : Vector (Sort_Column.Name | Text)) (matcher:Matcher=Text_Matcher.Case_Sensitive)

8
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Storage.enso
View File

@ -24,3 +24,11 @@ type Storage
## A column storing arbitrary data.
Any
## PRIVATE
Enumerates storage types in a way that is consistent with
`org.enso.table.data.Storage.Storage`, i.e.
`storage_type.at org.enso.table.data.Storage.Storage.LONG` will yield the
corresponding `Storage.Integer`.
types : Vector Storage
types = [Storage.Any, Storage.Integer, Storage.Decimal, Storage.Text, Storage.Boolean, Storage.Date, Storage.Time_Of_Day, Storage.Date_Time]

40
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Table.enso
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@ -6,30 +6,26 @@ import Standard.Base.Data.Ordering.Comparator
import Standard.Base.Data.Text.Case
import Standard.Base.System.Platform
import Standard.Table.Data.Column.Column
from Standard.Table.Data.Filter_Condition_Helpers import make_filter_column
import project.Data.Column.Column
import project.Data.Column_Name_Mapping.Column_Name_Mapping
import project.Data.Column_Selector.Column_Selector
import project.Data.Data_Formatter.Data_Formatter
import project.Data.Match_Columns.Match_Columns
import project.Data.Position.Position
import project.Data.Sort_Column_Selector.Sort_Column_Selector
import project.Data.Sort_Column.Sort_Column
import project.Data.Aggregate_Column.Aggregate_Column
import project.Internal.Table_Helpers
import project.Internal.Aggregate_Column_Helper
import project.Internal.Parse_Values_Helper
import project.Internal.Problem_Builder.Problem_Builder
import project.IO.Auto_Detect.Auto_Detect
import Standard.Table.Internal.Table_Helpers
import Standard.Table.Internal.Aggregate_Column_Helper
import Standard.Table.Internal.Parse_Values_Helper
import Standard.Table.Internal.Problem_Builder.Problem_Builder
from project.Data.Column_Type_Selection import Column_Type_Selection, Auto
from project.Delimited.Delimited_Format import Delimited
from project.Internal.Filter_Condition_Helpers import make_filter_column
from project.Errors import Missing_Input_Columns, Column_Indexes_Out_Of_Range, Duplicate_Type_Selector, No_Index_Set_Error, No_Such_Column_Error, No_Such_Column_Error_Data, No_Input_Columns_Selected, No_Output_Columns
import Standard.Table.IO.Auto_Detect.Auto_Detect
from Standard.Table.Delimited.Delimited_Format import Delimited_Format, Delimited
import Standard.Table.Data.Column_Selector.Column_Selector
from Standard.Table.Data.Column_Type_Selection import Column_Type_Selection, Auto
import Standard.Table.Data.Data_Formatter.Data_Formatter
from Standard.Table.Errors import Missing_Input_Columns, Column_Indexes_Out_Of_Range, Duplicate_Type_Selector, No_Index_Set_Error, No_Such_Column_Error, No_Such_Column_Error_Data, No_Input_Columns_Selected, No_Output_Columns
import Standard.Table.Data.Match_Columns.Match_Columns
from Standard.Table.Data.Column_Name_Mapping import Column_Name_Mapping
import Standard.Table.Data.Position.Position
import Standard.Table.Data.Sort_Column_Selector.Sort_Column_Selector
import Standard.Table.Data.Sort_Column.Sort_Column
import Standard.Table.Data.Aggregate_Column.Aggregate_Column
import Standard.Visualization
polyglot java import org.enso.table.data.table.Table as Java_Table

10
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Table_Conversions.enso
View File

@ -2,16 +2,16 @@ from Standard.Base import all
from Standard.Base.Error.Problem_Behavior import Report_Warning
import project.Data.Table.Table
import project.Errors
from project.Delimited.Delimited_Format import Delimited_Format, Delimited
import project.Delimited.Delimited_Reader
import project.Delimited.Delimited_Writer
from project.Delimited.Delimited_Format import Delimited_Format, Delimited
from project.Errors import unimplemented
Table.from (that : Text) (format:Delimited_Format = Delimited '\t') (on_problems:Problem_Behavior=Report_Warning) =
if format.is_a Delimited then Delimited_Reader.read_text that format on_problems else
Errors.unimplemented "Table.from for fixed-width files is not yet implemented."
unimplemented "Table.from for fixed-width files is not yet implemented."
Text.from (that : Table) (format:Delimited_Format = Delimited '\t') =
if format.is_a Delimited then Delimited_Writer.write_text that format else
Errors.unimplemented "Text.from for fixed-width files is not yet implemented."
unimplemented "Text.from for fixed-width files is not yet implemented."

2
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Value_Type.enso
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@ -4,7 +4,7 @@
from Standard.Base import all
from Standard.Table.Errors import Invalid_Value_Type
from project.Errors import Invalid_Value_Type
## Type to represent the different sizes of integer or float possible within a database.
type Bits

12
distribution/lib/Standard/Table/0.0.0-dev/src/Delimited/Delimited_Format.enso
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@ -1,11 +1,11 @@
from Standard.Base import all
from Standard.Table.Data.Table import Table
from Standard.Table.Data.Data_Formatter import Data_Formatter
from Standard.Table.Data.Match_Columns import Match_Columns
import Standard.Table.Delimited.Delimited_Reader
import Standard.Table.Delimited.Delimited_Writer
import Standard.Table.Delimited.Quote_Style.Quote_Style
import project.Data.Table.Table
import project.Data.Data_Formatter.Data_Formatter
import project.Data.Match_Columns.Match_Columns
import project.Delimited.Delimited_Reader
import project.Delimited.Delimited_Writer
import project.Delimited.Quote_Style.Quote_Style
from project.Delimited.Delimited_Format.Delimited_Format import Delimited
from project.Delimited.Delimited_Format.Delimited_Format export Delimited

10
distribution/lib/Standard/Table/0.0.0-dev/src/Delimited/Delimited_Reader.enso
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@ -2,12 +2,12 @@ from Standard.Base import all
import Standard.Base.Error.Common as Errors
from Standard.Base.Error.Problem_Behavior import Ignore, Report_Error
import Standard.Table.Data.Table.Table
import Standard.Table.Data.Data_Formatter.Data_Formatter
import Standard.Table.Delimited.Delimited_Format.Delimited_Format
import Standard.Table.Delimited.Quote_Style.Quote_Style
import project.Data.Table.Table
import project.Data.Data_Formatter.Data_Formatter
import project.Delimited.Delimited_Format.Delimited_Format
import project.Delimited.Quote_Style.Quote_Style
from Standard.Table.Errors import Duplicate_Output_Column_Names_Data, Invalid_Output_Column_Names_Data, Invalid_Row_Data, Mismatched_Quote, Parser_Error, Additional_Invalid_Rows_Data
from project.Errors import Duplicate_Output_Column_Names_Data, Invalid_Output_Column_Names_Data, Invalid_Row_Data, Mismatched_Quote, Parser_Error, Additional_Invalid_Rows_Data
polyglot java import org.enso.base.encoding.NewlineDetector
polyglot java import org.enso.table.read.DelimitedReader

17
distribution/lib/Standard/Table/0.0.0-dev/src/Delimited/Delimited_Writer.enso
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@ -2,14 +2,15 @@ from Standard.Base import all
import Standard.Base.System
import Standard.Base.Error.Common as Errors
from Standard.Table.Data.Table import Table
from Standard.Table.Errors import Duplicate_Output_Column_Names, Invalid_Output_Column_Names, Invalid_Row, Mismatched_Quote, Parser_Error, Additional_Invalid_Rows, Column_Count_Mismatch, Column_Name_Mismatch
from Standard.Table.Data.Data_Formatter import Data_Formatter
from Standard.Table.Data.Storage import Storage
from Standard.Table.Delimited.Delimited_Format import Delimited_Format
from Standard.Table.Delimited.Quote_Style import Quote_Style
from Standard.Table.Delimited.Delimited_Reader import Detected_Headers, detect_metadata
from Standard.Table.Data.Match_Columns import Match_Columns
import project.Data.Table.Table
import project.Data.Data_Formatter.Data_Formatter
import project.Data.Match_Columns.Match_Columns
import project.Data.Storage.Storage
import project.Delimited.Delimited_Format.Delimited_Format
import project.Delimited.Quote_Style.Quote_Style
from project.Delimited.Delimited_Reader import Detected_Headers, detect_metadata
from project.Errors import Duplicate_Output_Column_Names, Invalid_Output_Column_Names, Invalid_Row, Mismatched_Quote, Parser_Error, Additional_Invalid_Rows, Column_Count_Mismatch, Column_Name_Mismatch
polyglot java import org.enso.table.write.DelimitedWriter
polyglot java import org.enso.table.write.WriteQuoteBehavior

8
distribution/lib/Standard/Table/0.0.0-dev/src/Excel/Excel_Format.enso
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@ -1,10 +1,10 @@
from Standard.Base import all
import Standard.Table.Data.Table.Table
import project.Data.Table.Table
import project.Excel.Excel_Reader
import project.Excel.Excel_Writer
from Standard.Table.Excel.Section import Excel_Section, Worksheet, Sheet_Names, Range_Names
import Standard.Table.Excel.Excel_Reader
import Standard.Table.Excel.Excel_Writer
from project.Excel.Excel_Section import Excel_Section, Worksheet, Sheet_Names, Range_Names
from project.Excel.Excel_Format.Excel_Format import Excel
from project.Excel.Excel_Format.Excel_Format export Excel

0
distribution/lib/Standard/Table/0.0.0-dev/src/Excel/Range.enso → distribution/lib/Standard/Table/0.0.0-dev/src/Excel/Excel_Range.enso
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9
distribution/lib/Standard/Table/0.0.0-dev/src/Excel/Excel_Reader.enso
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@ -1,12 +1,11 @@
from Standard.Base import all
import Standard.Base.System.File.Option
import Standard.Table.Data.Table.Table
import Standard.Table.Excel.Range.Excel_Range
import project.Data.Table.Table
import project.Excel.Excel_Range.Excel_Range
from Standard.Table.Excel.Section import Excel_Section, Sheet_Names, Range_Names, Worksheet, Cell_Range
from Standard.Table.Errors import Invalid_Location_Data, Duplicate_Output_Column_Names_Data, Invalid_Output_Column_Names_Data
from project.Excel.Excel_Section import Excel_Section, Sheet_Names, Range_Names, Worksheet, Cell_Range
from project.Errors import Invalid_Location_Data, Duplicate_Output_Column_Names_Data, Invalid_Output_Column_Names_Data
polyglot java import org.enso.table.excel.ExcelHeaders
polyglot java import org.enso.table.read.ExcelReader

6
distribution/lib/Standard/Table/0.0.0-dev/src/Excel/Section.enso → distribution/lib/Standard/Table/0.0.0-dev/src/Excel/Excel_Section.enso
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@ -1,9 +1,9 @@
from Standard.Base import all
import Standard.Table.Excel.Range.Excel_Range
import project.Excel.Excel_Range.Excel_Range
from project.Excel.Section.Excel_Section import all
from project.Excel.Section.Excel_Section export all
from project.Excel.Excel_Section.Excel_Section import all
from project.Excel.Excel_Section.Excel_Section export all
type Excel_Section
## Gets a list of sheets within a workbook.

13
distribution/lib/Standard/Table/0.0.0-dev/src/Excel/Excel_Writer.enso
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@ -1,13 +1,12 @@
from Standard.Base import all
import Standard.Table.Data.Table
import project.Data.Table
import project.Data.Match_Columns.Match_Columns
import project.Excel.Excel_Range.Excel_Range
from Standard.Table.Excel.Excel_Reader import handle_reader, make_java_headers
from Standard.Table.Excel.Section import Worksheet, Cell_Range
import Standard.Table.Excel.Range.Excel_Range
from Standard.Table.Errors import Invalid_Location_Data, Range_Exceeded_Data, Existing_Data_Data, Column_Count_Mismatch, Column_Name_Mismatch
import Standard.Table.Data.Match_Columns.Match_Columns
from project.Excel.Excel_Reader import handle_reader, make_java_headers
from project.Excel.Excel_Section import Worksheet, Cell_Range
from project.Errors import Invalid_Location_Data, Range_Exceeded_Data, Existing_Data_Data, Column_Count_Mismatch, Column_Name_Mismatch
polyglot java import org.enso.table.read.ExcelReader
polyglot java import org.enso.table.write.ExcelWriter

4
distribution/lib/Standard/Table/0.0.0-dev/src/IO/Auto_Detect.enso
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@ -1,8 +1,8 @@
from Standard.Base import Any, Problem_Behavior, Nothing, Error, Panic, Meta, File, File_Format, Plain_Text_Format, Bytes
from Standard.Base.Error.Common import Unsupported_File_Type, Unsupported_File_Type_Data, No_Such_Method_Error_Data, Illegal_Argument_Error_Data
import Standard.Table.Delimited.Delimited_Format.Delimited_Format
import Standard.Table.Excel.Excel_Format.Excel_Format
import project.Delimited.Delimited_Format.Delimited_Format
import project.Excel.Excel_Format.Excel_Format
## PRIVATE
Set of File_Format types for read files.

2
distribution/lib/Standard/Table/0.0.0-dev/src/IO/File_Read.enso
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@ -2,7 +2,7 @@ from Standard.Base import Any, Text, Problem_Behavior, Nothing, Error, Panic, Me
from Standard.Base.Error.Problem_Behavior import Report_Warning
from Standard.Base.Error.Common import Unsupported_File_Type_Data, No_Such_Method_Error_Data, Illegal_Argument_Error_Data
import Standard.Table.IO.Auto_Detect.Auto_Detect
import project.IO.Auto_Detect.Auto_Detect
## ALIAS Read Text File, Read File

24
distribution/lib/Standard/Table/0.0.0-dev/src/Internal/Aggregate_Column_Helper.enso
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@ -1,20 +1,16 @@
from Standard.Base import all hiding First, Last
import Standard.Table.Data.Column.Column
from Standard.Table.Data.Aggregate_Column.Aggregate_Column import all
import Standard.Table.Data.Column_Selector.Column_Selector
import Standard.Table.Internal.Problem_Builder.Problem_Builder
import Standard.Table.Internal.Unique_Name_Strategy.Unique_Name_Strategy
import Standard.Table.Internal.Table_Helpers
import Standard.Table.Data.Sort_Column_Selector.Sort_Column_Selector
import Standard.Table.Data.Sort_Column.Sort_Column
import Standard.Base.Data.Ordering.Comparator
from Standard.Table.Errors import Missing_Input_Columns_Data, Column_Indexes_Out_Of_Range, No_Output_Columns, Duplicate_Output_Column_Names_Data, Invalid_Output_Column_Names_Data, Invalid_Aggregation_Data, Floating_Point_Grouping_Data, Unquoted_Delimiter_Data, Additional_Warnings_Data
import project.Data.Column.Column
import project.Data.Column_Selector.Column_Selector
import project.Data.Sort_Column.Sort_Column
import project.Data.Sort_Column_Selector.Sort_Column_Selector
import project.Internal.Problem_Builder.Problem_Builder
import project.Internal.Table_Helpers
import project.Internal.Unique_Name_Strategy.Unique_Name_Strategy
from project.Data.Aggregate_Column.Aggregate_Column import all
from project.Errors import Missing_Input_Columns_Data, Column_Indexes_Out_Of_Range, No_Output_Columns, Duplicate_Output_Column_Names_Data, Invalid_Output_Column_Names_Data, Invalid_Aggregation_Data, Floating_Point_Grouping_Data, Unquoted_Delimiter_Data, Additional_Warnings_Data
polyglot java import org.enso.table.aggregations.Aggregator
polyglot java import org.enso.table.aggregations.Concatenate as ConcatenateAggregator

2
distribution/lib/Standard/Table/0.0.0-dev/src/Data/Filter_Condition_Helpers.enso → distribution/lib/Standard/Table/0.0.0-dev/src/Internal/Filter_Condition_Helpers.enso
View File

@ -1,6 +1,6 @@
from Standard.Base import all
from Standard.Table.Data.Value_Type import Value_Type
import project.Data.Value_Type.Value_Type
from Standard.Base.Data.Filter_Condition.Filter_Condition import all

6
distribution/lib/Standard/Table/0.0.0-dev/src/Internal/Java_Exports.enso
View File

@ -1,9 +1,9 @@
from Standard.Base import all
import Standard.Table.Data.Column.Column
polyglot java import org.enso.table.data.table.Column as Java_Column
import project.Data.Column.Column
import project.Data.Table.Table
import Standard.Table.Data.Table.Table
polyglot java import org.enso.table.data.table.Column as Java_Column
polyglot java import org.enso.table.data.table.Table as Java_Table
polyglot java import org.enso.table.data.index.DefaultIndex

2
distribution/lib/Standard/Table/0.0.0-dev/src/Internal/Parse_Values_Helper.enso
View File

@ -1,6 +1,6 @@
from Standard.Base import all
from Standard.Table.Errors import Invalid_Format_Data, Leading_Zeros_Data
from project.Errors import Invalid_Format_Data, Leading_Zeros_Data
polyglot java import org.enso.table.parsing.problems.InvalidFormat
polyglot java import org.enso.table.parsing.problems.LeadingZeros

4
distribution/lib/Standard/Table/0.0.0-dev/src/Internal/Problem_Builder.enso
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@ -2,9 +2,9 @@ from Standard.Base import all
from Standard.Base.Error.Problem_Behavior import Report_Warning
import Standard.Base.Runtime.Ref
import Standard.Table.Internal.Vector_Builder.Vector_Builder
import project.Internal.Vector_Builder.Vector_Builder
from Standard.Table.Errors import Missing_Input_Columns_Data, Column_Indexes_Out_Of_Range_Data, No_Output_Columns, Duplicate_Column_Selectors_Data, Input_Indices_Already_Matched_Data, Too_Many_Column_Names_Provided, Duplicate_Output_Column_Names, Invalid_Output_Column_Names, Column_Matched_By_Multiple_Selectors_Data
from project.Errors import Missing_Input_Columns_Data, Column_Indexes_Out_Of_Range_Data, No_Output_Columns, Duplicate_Column_Selectors_Data, Input_Indices_Already_Matched_Data, Too_Many_Column_Names_Provided, Duplicate_Output_Column_Names, Invalid_Output_Column_Names, Column_Matched_By_Multiple_Selectors_Data
type Problem_Builder
Value oob_indices duplicate_column_selectors input_indices_already_matched missing_input_columns other

17
distribution/lib/Standard/Table/0.0.0-dev/src/Internal/Table_Helpers.enso
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@ -4,14 +4,15 @@ import Standard.Base.Data.Ordering.Vector_Lexicographic_Order
from Standard.Base.Data.Text.Text_Ordering import Text_Ordering
from Standard.Base.Error.Problem_Behavior import Report_Warning
import Standard.Table.Data.Position.Position
from Standard.Table.Errors import Missing_Input_Columns_Data, No_Output_Columns, Too_Many_Column_Names_Provided_Data, Duplicate_Output_Column_Names_Data, Invalid_Output_Column_Names_Data, No_Input_Columns_Selected
import Standard.Table.Data.Column_Selector.Column_Selector
import Standard.Table.Data.Column_Name_Mapping.Column_Name_Mapping
import Standard.Table.Internal.Unique_Name_Strategy.Unique_Name_Strategy
import Standard.Table.Internal.Problem_Builder.Problem_Builder
import Standard.Table.Data.Sort_Column_Selector.Sort_Column_Selector
import Standard.Table.Data.Sort_Column.Sort_Column
import project.Data.Position.Position
import project.Data.Column_Name_Mapping.Column_Name_Mapping
import project.Data.Column_Selector.Column_Selector
import project.Data.Sort_Column_Selector.Sort_Column_Selector
import project.Data.Sort_Column.Sort_Column
import project.Internal.Problem_Builder.Problem_Builder
import project.Internal.Unique_Name_Strategy.Unique_Name_Strategy
from project.Errors import Missing_Input_Columns_Data, No_Output_Columns, Too_Many_Column_Names_Provided_Data, Duplicate_Output_Column_Names_Data, Invalid_Output_Column_Names_Data, No_Input_Columns_Selected
polyglot java import java.util.HashSet

9
distribution/lib/Standard/Table/0.0.0-dev/src/Main.enso
View File

@ -20,8 +20,8 @@ import project.Delimited.Quote_Style.Quote_Style
import project.Delimited.Delimited_Format
import project.Data.Table_Conversions
import project.Excel.Section
import project.Excel.Range.Excel_Range
import project.Excel.Excel_Section
import project.Excel.Excel_Range.Excel_Range
import project.Excel.Excel_Format
export project.Data.Table.Table
@ -33,7 +33,6 @@ export project.Data.Column_Name_Mapping.Column_Name_Mapping
export project.Data.Match_Columns.Match_Columns
export project.Data.Position.Position
export project.Data.Aggregate_Column.Aggregate_Column
export project.Data.Filter_Condition.Filter_Condition
export project.IO.File_Read
export project.IO.Auto_Detect.Auto_Detect
@ -43,8 +42,8 @@ from project.Delimited.Delimited_Format export Delimited_Format, Delimited
export project.Data.Table_Conversions
from project.Excel.Excel_Format export Excel_Format, Excel
from project.Excel.Section export Excel_Section, Sheet_Names, Range_Names, Worksheet, Cell_Range
export project.Excel.Range.Excel_Range
from project.Excel.Excel_Section export Excel_Section, Sheet_Names, Range_Names, Worksheet, Cell_Range
export project.Excel.Excel_Range.Excel_Range
export project.Data.Data_Formatter.Data_Formatter

8
distribution/lib/Standard/Visualization/0.0.0-dev/src/File_Upload.enso
View File

@ -9,16 +9,12 @@ from Standard.Base import all
- `path`: The path to which the file is being uploaded.
file_uploading : (File.File | Text) -> File.File ! File_Being_Uploaded
file_uploading path =
err = File_Being_Uploaded_Data <| case path of
err = File_Being_Uploaded.Value <| case path of
_ : Text -> path
_ : File.File -> path.path
_ -> ""
Error.throw err
# TODO Dubious constructor export
from project.File_Upload.File_Being_Uploaded import all
from project.File_Upload.File_Being_Uploaded export all
## UNSTABLE
Represents that a file is being uploaded to the given `file_path`.
@ -26,4 +22,4 @@ from project.File_Upload.File_Being_Uploaded export all
Arguments:
- file_path: The path at which the file is being uploaded.
type File_Being_Uploaded
File_Being_Uploaded_Data file_path
Value file_path

4
distribution/lib/Standard/Visualization/0.0.0-dev/src/Geo_Map.enso
View File

@ -1,8 +1,8 @@
from Standard.Base import all
from Standard.Table import Table
import Standard.Test
import Standard.Visualization.Helpers
import project.Helpers
## PRIVATE

8
distribution/lib/Standard/Visualization/0.0.0-dev/src/Histogram.enso
View File

@ -1,7 +1,7 @@
from Standard.Base import all
from Standard.Table import Table, Column
import Standard.Visualization.Helpers
import project.Helpers
## PRIVATE
@ -23,7 +23,7 @@ Table.value_column self =
type Update
## PRIVATE
Update_Data values label
Value values label
## PRIVATE
@ -43,12 +43,12 @@ from_table table =
col = table.value_column
label = col.name.catch_ Nothing
values = col.to_vector.catch_ []
Update.Update_Data values label
Update.Value values label
## PRIVATE
from_vector : Vector -> Update
from_vector vector =
Update.Update_Data vector Nothing
Update.Value vector Nothing
## PRIVATE
from_value : Any -> Update

27
distribution/lib/Standard/Visualization/0.0.0-dev/src/Id.enso
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@ -1,16 +1,13 @@
from Standard.Base import all
import Standard.Base
# TODO Dubious constructor export
from project.Id.Id import all
from project.Id.Id export all
## An ID used by the visualization system to identify different ways of
displaying data.
type Id
## A builtin visulization, implemented in the graphical interface and not
imported from any library.
Builtin name
## A visualization implemented in a library.
Library project name
@ -18,8 +15,8 @@ type Id
interface.
to_json self =
project = case self of
Builtin _ -> Nothing
Library project _ ->
Id.Builtin _ -> Nothing
Id.Library project _ ->
full_name = project.namespace + "." + project.name
Base.Json.from_pairs [["name", full_name]]
Base.Json.from_pairs [["library", project], ["name", self.name]]
@ -29,56 +26,56 @@ type Id
An identifier for the builtin JSON visualization
json : Id
json = Builtin "JSON"
json = Id.Builtin "JSON"
## UNSTABLE
ADVANCED
An identifier for the builtin Scatter Plot visualization
scatter_plot : Id
scatter_plot = Builtin "Scatter Plot"
scatter_plot = Id.Builtin "Scatter Plot"
## UNSTABLE
ADVANCED
An identifier for the builtin Histogram visualization
histogram : Id
histogram = Builtin "Histogram"
histogram = Id.Builtin "Histogram"
## UNSTABLE
ADVANCED
An identifier for the builtin Heatmap visualization
heatmap : Id
heatmap = Builtin "Heatmap"
heatmap = Id.Builtin "Heatmap"
## UNSTABLE
ADVANCED
An identifier for the builtin Table visualization
table : Id
table = Builtin "Table"
table = Id.Builtin "Table"
## UNSTABLE
ADVANCED
An identifier for the builtin SQL Query visualization
sql_query : Id
sql_query = Builtin "SQL Query"
sql_query = Id.Builtin "SQL Query"
## UNSTABLE
ADVANCED
An identifier for the builtin Geo Map visualization
geo_map : Id
geo_map = Builtin "Geo Map"
geo_map = Id.Builtin "Geo Map"
## UNSTABLE
ADVANCED
An identifier for the builtin Image visualization
image : Id
image = Builtin "Image"
image = Id.Builtin "Image"
## UNSTABLE
ADVANCED
@ -97,7 +94,7 @@ image = Builtin "Image"
example_id = Visualization.Id.from_module Base "My Visualization"
from_module module visualization_name =
Library module.enso_project visualization_name
Id.Library module.enso_project visualization_name
## UNSTABLE
ADVANCED

10
distribution/lib/Standard/Visualization/0.0.0-dev/src/Main.enso
View File

@ -1,8 +1,8 @@
from Standard.Base import all
import Standard.Visualization.File_Upload
import Standard.Visualization.Id
import Standard.Visualization.Preprocessor
import project.File_Upload
import project.Id
import project.Preprocessor
from Standard.Visualization.File_Upload export file_uploading
export Standard.Visualization.Id
from project.File_Upload export file_uploading
export project.Id

5
distribution/lib/Standard/Visualization/0.0.0-dev/src/SQL/Visualization.enso
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@ -1,7 +1,8 @@
from Standard.Base import all
from Standard.Database.Data.SQL import SQL_Type
import Standard.Visualization.Helpers
import Standard.Database.Data.SQL_Type.SQL_Type
import project.Helpers
## PRIVATE

39
distribution/lib/Standard/Visualization/0.0.0-dev/src/Scatter_Plot.enso
View File

@ -1,9 +1,9 @@
from Standard.Base import all
from Standard.Base.Data.Index_Sub_Range import Sample
from Standard.Table import Table, Column
import Standard.Visualization.Helpers
from Standard.Base.Data.Index_Sub_Range import Sample
import project.Helpers
## PRIVATE
@ -23,10 +23,6 @@ axis_field = 'axis'
label_field : Text
label_field = 'label'
# TODO Dubious constructor export
from project.Scatter_Plot.Point_Data import all
from project.Scatter_Plot.Point_Data export all
## PRIVATE
Represents a recognized point data field for a scatter plot visualization.
@ -54,7 +50,7 @@ type Point_Data
Returns all recognized point data fields.
all_fields : Vector
all_fields = [X,Y,Color,Shape,Label,Size]
all_fields = [Point_Data.X, Point_Data.Y, Point_Data.Color, Point_Data.Shape, Point_Data.Label, Point_Data.Size]
## PRIVATE
recognized_names : Vector
@ -71,9 +67,9 @@ type Point_Data
## PRIVATE
fallback_column : Table -> Column ! No_Fallback_Column
fallback_column self table = case self of
X -> table.index.catch_ <| Point_Data.iota table.row_count
Y ->
x_column = X.lookup_in table
Point_Data.X -> table.index.catch_ <| Point_Data.iota table.row_count
Point_Data.Y ->
x_column = Point_Data.X.lookup_in table
candidates = table.all_columns
is_good_enough c = c.is_numeric && c.name != x_column.name
is_good c = is_good_enough c && (self.is_recognized c).not
@ -124,8 +120,8 @@ Table.axes self =
col_name = field.lookup_in self . name
label = Json.from_pairs [[label_field, col_name]]
[field.name, label]
x_axis = describe_axis X
y_axis = describe_axis Y
x_axis = describe_axis Point_Data.X
y_axis = describe_axis Point_Data.Y
is_valid axis_pair =
label = axis_pair.at 1
label.is_valid && (self.all_columns.length > 0)
@ -136,7 +132,7 @@ Table.axes self =
Vector.Vector.point_data : Vector -> Object
Vector.Vector.point_data self =
self.map_with_index <| i-> elem->
Json.from_pairs [[X.name,i],[Y.name,elem]]
Json.from_pairs [[Point_Data.X.name, i], [Point_Data.Y.name, elem]]
## PRIVATE
bound_data bounds data = case bounds of
@ -153,12 +149,8 @@ bound_data bounds data = case bounds of
min_x<=x && x<=max_x && min_y<=y && y<=max_y
# TODO Dubious constructor export
from project.Scatter_Plot.Extreme import all
from project.Scatter_Plot.Extreme export all
type Extreme
Extreme_Data min_x max_x min_y max_y
Value min_x max_x min_y max_y
## PRIVATE
limit_data limit data = case limit of
@ -172,11 +164,11 @@ limit_data limit data = case limit of
new_min_y = if y current.min_y.second > y point then [idx, point] else current.min_y
new_max_x = if x current.max_x.second < x point then [idx, point] else current.max_x
new_max_y = if y current.max_y.second < y point then [idx, point] else current.max_y
Extreme_Data new_min_x new_max_x new_min_y new_max_y
Extreme.Value new_min_x new_max_x new_min_y new_max_y
first = [0, data.first]
bounds = case data.fold_with_index (Extreme_Data first first first first) update_extreme of
Extreme_Data min_x max_x min_y max_y -> [min_x, max_x, min_y, max_y]
bounds = case data.fold_with_index (Extreme.Value first first first first) update_extreme of
Extreme.Value min_x max_x min_y max_y -> [min_x, max_x, min_y, max_y]
_ -> []
extreme = Map.from_vector bounds . values
@ -199,9 +191,9 @@ json_from_vector vec bounds limit =
## PRIVATE
Default preprocessor for the scatterplot visualization.
Default preprocessor for the scatter-plot visualization.
Generates JSON text describing the scatterplot visualization.
Generates JSON text describing the scatter-plot visualization.
Arguments:
- value: the value to be visualized.
@ -214,4 +206,3 @@ process_to_json_text value bounds=Nothing limit=Nothing =
_ -> json_from_vector value.to_vector bounds limit
json.to_text

10
distribution/lib/Standard/Visualization/0.0.0-dev/src/Table/Visualization.enso
View File

@ -7,7 +7,7 @@ import Standard.Database.Data.Column.Column as Database_Column
import Standard.Table.Data.Column_Selector.Column_Selector
import Standard.Visualization.Helpers
import project.Helpers
# TODO add an initial offset to fully support lazy visualizations
@ -22,7 +22,7 @@ import Standard.Visualization.Helpers
In case of Database backed data, it materializes a fragment of the data.
prepare_visualization : Any -> Integer -> Json
prepare_visualization x max_rows=1000 = Helpers.recover_errors <| case x of
Dataframe_Table.Table_Data _ ->
_ : Dataframe_Table ->
dataframe = x.take (First max_rows)
all_rows_count = x.row_count
included_rows = dataframe.row_count
@ -30,7 +30,7 @@ prepare_visualization x max_rows=1000 = Helpers.recover_errors <| case x of
Dataframe_Column.from_vector "" (Vector.new included_rows i->i)
make_json dataframe [index] all_rows_count
Database_Table.Table_Data _ _ _ _ ->
_ : Database_Table ->
# Materialize a table with indices as normal columns (because dataframe does not support multi-indexing).
df = x.reset_index.read max_rows
# Then split into actual columns and indices.
@ -40,9 +40,9 @@ prepare_visualization x max_rows=1000 = Helpers.recover_errors <| case x of
make_json vis_df indices all_rows_count
# We display columns as 1-column tables.
Dataframe_Column.Column_Data _ ->
_ : Dataframe_Column ->
prepare_visualization x.to_table max_rows
Database_Column.Column_Data _ _ _ _ _ ->
_ : Database_Column ->
prepare_visualization x.to_table max_rows
# TODO [RW] Should we truncate Vectors?

24
test/Table_Tests/src/Column_Spec.enso
View File

@ -1,6 +1,6 @@
from Standard.Base import all
from Standard.Table import Column
import Standard.Table.Data.Column as Column_Module
import Standard.Table.Data.Column.Empty_Error
import Standard.Table.Data.Storage.Storage
import Standard.Examples
@ -13,14 +13,14 @@ spec = Test.group "Columns" <|
empty_column = Column.from_vector "Test" []
Test.specify "should correctly map storage types" <|
Column_Module.storage_types.at Java_Storage.Type.LONG . should_equal Storage.Integer
Column_Module.storage_types.at Java_Storage.Type.DOUBLE . should_equal Storage.Decimal
Column_Module.storage_types.at Java_Storage.Type.STRING . should_equal Storage.Text
Column_Module.storage_types.at Java_Storage.Type.BOOL . should_equal Storage.Boolean
Column_Module.storage_types.at Java_Storage.Type.OBJECT . should_equal Storage.Any
Column_Module.storage_types.at Java_Storage.Type.DATE . should_equal Storage.Date
Column_Module.storage_types.at Java_Storage.Type.TIME_OF_DAY . should_equal Storage.Time_Of_Day
Column_Module.storage_types.at Java_Storage.Type.DATE_TIME . should_equal Storage.Date_Time
Storage.types.at Java_Storage.Type.LONG . should_equal Storage.Integer
Storage.types.at Java_Storage.Type.DOUBLE . should_equal Storage.Decimal
Storage.types.at Java_Storage.Type.STRING . should_equal Storage.Text
Storage.types.at Java_Storage.Type.BOOL . should_equal Storage.Boolean
Storage.types.at Java_Storage.Type.OBJECT . should_equal Storage.Any
Storage.types.at Java_Storage.Type.DATE . should_equal Storage.Date
Storage.types.at Java_Storage.Type.TIME_OF_DAY . should_equal Storage.Time_Of_Day
Storage.types.at Java_Storage.Type.DATE_TIME . should_equal Storage.Date_Time
Test.specify "should allow getting specific elements" <|
test_column.at 0 . should_equal 1
@ -48,12 +48,12 @@ spec = Test.group "Columns" <|
Test.specify "should be able to get the first / head element" <|
test_column.first . should_equal 1
test_column.head . should_equal 1
empty_column.first.should_fail_with Column_Module.Empty_Error
empty_column.head.should_fail_with Column_Module.Empty_Error
empty_column.first.should_fail_with Empty_Error
empty_column.head.should_fail_with Empty_Error
Test.specify "should be able to get the last element" <|
test_column.last . should_equal 6
empty_column.last.should_fail_with Column_Module.Empty_Error
empty_column.last.should_fail_with Empty_Error
Test.specify "should be able to be reversed" <|
expected_1 = Column.from_vector "Test" [6, 4, 2, 5, 3, 1]

12
test/Table_Tests/src/Database/Codegen_Spec.enso
View File

@ -5,8 +5,8 @@ from Standard.Table.Data.Aggregate_Column.Aggregate_Column import all
from Standard.Table.Errors import No_Input_Columns_Selected, Missing_Input_Columns_Data, No_Such_Column_Error_Data
from Standard.Database import all
from Standard.Database.Data.SQL import SQL_Type
import Standard.Database.Data.Dialect
import Standard.Database.Data.SQL_Type.SQL_Type
from Standard.Database.Data.Table import combine_names, fresh_names
from Standard.Database.Errors import Unsupported_Database_Operation_Error_Data
@ -25,7 +25,7 @@ spec =
table3 = ["T3", [["A", int], ["E", bool], ["F", int]]]
tables = Map.from_vector [table1, table2, table3]
Fake_Test_Connection.make Dialect.sqlite tables
t1 = test_connection.query (Table_Name "T1")
t1 = test_connection.query (SQL_Query.Table_Name "T1")
Test.group "[Codegen] JSON serialization" <|
Test.specify "should serialize Tables and Columns to their SQL representation" <|
q1 = t1.filter (t1.at "A" == 42) . to_json
@ -99,8 +99,8 @@ spec =
c2.to_sql.prepare . should_equal ['SELECT "T1"."B" AS "B" FROM "T1" AS "T1" WHERE ("T1"."A" = "T1"."C")', []]
Test.group "[Codegen] Joining Tables" <|
t2 = test_connection.query (Table_Name "T2")
t3 = test_connection.query (Table_Name "T3")
t2 = test_connection.query (SQL_Query.Table_Name "T2")
t3 = test_connection.query (SQL_Query.Table_Name "T3")
Test.specify "should allow joining tables index-on-index" <|
r1 = t1.set_index 'A' . join (t2.set_index 'D')
r1.to_sql.prepare . should_equal ['SELECT "T1"."B" AS "B", "T1"."C" AS "C", "T2"."E" AS "E", "T2"."F" AS "F" FROM (SELECT "T1"."B" AS "B", "T1"."C" AS "C", "T1"."A" AS "A", "T1"."A" AS "A_1" FROM "T1" AS "T1") AS "T1" LEFT JOIN (SELECT "T2"."E" AS "E", "T2"."F" AS "F", "T2"."D" AS "D" FROM "T2" AS "T2") AS "T2" ON ("T1"."A_1" = "T2"."D")', []]
@ -123,8 +123,8 @@ spec =
table2 = ["T2", [["X", int], ["A", int], ["B", int]]]
tables = Map.from_vector [table1, table2]
Fake_Test_Connection.make Dialect.sqlite tables
t1 = connection.query (Table_Name "T1")
t2 = connection.query (Table_Name "T2")
t1 = connection.query (SQL_Query.Table_Name "T1")
t2 = connection.query (SQL_Query.Table_Name "T2")
(t1.set_index "X").join (t2.set_index "X") . should_fail_with Illegal_State_Error_Data
Test.specify "should ensure that name suffixes are distinct" <|

23
test/Table_Tests/src/Database/Helpers/Fake_Test_Connection.enso
View File

@ -1,10 +1,11 @@
from Standard.Base import all
import Standard.Table.Data.Table as Materialized_Table
from Standard.Database import SQL_Query, Raw_SQL, Table_Name
import Standard.Table.Data.Table.Table as Materialized_Table
from Standard.Database import SQL_Query
import Standard.Database.Data.Table as Database_Table
from Standard.Database.Data.SQL import Statement, SQL_Type
import Standard.Database.Internal.IR
import Standard.Database.Data.SQL_Statement.SQL_Statement
import Standard.Database.Data.SQL_Type.SQL_Type
import Standard.Database.Internal.IR.Context.Context
type Fake_Test_Connection
# type Fake_Test_Connection.Value (tables : Map Text (Vector [Text, SQL_Type])) (dialect : Text)
@ -16,14 +17,14 @@ type Fake_Test_Connection
- query: name of the table or sql statement to query.
If supplied as `Text`, the name is checked against the `tables` list to determine if it is a table or a query.
- alias: optionally specify a friendly alias for the query.
query : Text | SQL_Query -> Text -> Database_Table
query : Text | SQL_Query -> Text -> Database_Table.Table
query self query alias="" = case query of
Text -> self.query (Table_Name query) alias
Raw_SQL _ ->
Text -> self.query (SQL_Query.Table_Name query) alias
SQL_Query.Raw_SQL _ ->
Error.throw (Illegal_Argument_Error "Cannot query a fake connection with raw SQL")
Table_Name name ->
SQL_Query.Table_Name name ->
columns = self.tables.get name
Database_Table.make_table self name columns (IR.context_for_table name)
Database_Table.make_table self name columns (Context.for_table name)
## Execute the query and load the results into memory as a Table.
@ -32,7 +33,7 @@ type Fake_Test_Connection
If supplied as `Text`, the name is checked against the `tables` list to determine if it is a table or a query.
- alias: optionally specify a friendly alias for the query.
- limit: the maximum number of rows to return (default 1000).
read : Text | SQL_Query -> Text -> Integer | Nothing -> Materialized_Table.Table
read : Text | SQL_Query -> Text -> Integer | Nothing -> Materialized_Table
read self _ _="" _=Nothing =
Error.throw "Materialization not supported on fake connection."
@ -41,7 +42,7 @@ type Fake_Test_Connection
close self = Nothing
## PRIVATE
execute_update : Text | Statement -> Integer
execute_update : Text | SQL_Statement -> Integer
execute_update self _ =
Error.throw "Materialization not supported on fake connection."

55
test/Table_Tests/src/Database/Postgres_Spec.enso
View File

@ -7,11 +7,10 @@ from Standard.Base.System.Process.Exit_Code import Exit_Success
from Standard.Table import Table
from Standard.Table.Data.Aggregate_Column.Aggregate_Column import all hiding First
import Standard.Database
from Standard.Database import all
from Standard.Database import Database, Postgres, SQL_Query, Credentials, SSL_Mode
from Standard.Database.Errors import SQL_Error
from Standard.Database.Data.SQL import SQL_Type
from Standard.Database.Internal.Postgres.Pgpass import Pgpass_Entry_Data
import Standard.Database.Data.SQL_Type.SQL_Type
import Standard.Database.Internal.Postgres.Pgpass
import Standard.Test
@ -39,14 +38,14 @@ postgres_specific_spec connection db_name pending =
Test.specify "should allow changing schema" <|
new_connection = connection.set_schema "information_schema"
new_schema = new_connection.read (Raw_SQL "SELECT current_schema()") . at 0 . to_vector . first
new_schema = new_connection.read (SQL_Query.Raw_SQL "SELECT current_schema()") . at 0 . to_vector . first
new_schema . should_equal "information_schema"
databases = connection.databases.filter d->((d!=db_name) && (d!='rdsadmin'))
pending_database = if databases.length != 0 then Nothing else "Cannot tests changing database unless two databases defined."
Test.specify "should allow changing database" pending=pending_database <|
new_connection = connection.set_database databases.first
new_database = new_connection.read (Raw_SQL "SELECT current_database()") . at 0 . to_vector . first
new_database = new_connection.read (SQL_Query.Raw_SQL "SELECT current_database()") . at 0 . to_vector . first
new_database . should_equal databases.first
Test.group "[PostgreSQL] Tables and Table Types" <|
@ -91,7 +90,7 @@ postgres_specific_spec connection db_name pending =
Test.group "[PostgreSQL] Info" pending=pending <|
tinfo = Name_Generator.random_name "Tinfo"
connection.execute_update 'CREATE TEMPORARY TABLE "'+tinfo+'" ("strs" VARCHAR, "ints" INTEGER, "bools" BOOLEAN, "reals" REAL, "doubles" DOUBLE PRECISION)'
t = connection.query (Table_Name tinfo)
t = connection.query (SQL_Query.Table_Name tinfo)
t.insert ["a", Nothing, False, 1.2, 0.000000000001]
t.insert ["abc", Nothing, Nothing, 1.3, Nothing]
t.insert ["def", 42, True, 1.4, 10]
@ -118,7 +117,7 @@ postgres_specific_spec connection db_name pending =
Test.group "[PostgreSQL] Table.aggregate should correctly infer result types" pending=pending <|
name = Name_Generator.random_name "Ttypes"
connection.execute_update 'CREATE TEMPORARY TABLE "'+name+'" ("txt" VARCHAR, "i1" SMALLINT, "i2" INT, "i3" BIGINT, "i4" NUMERIC, "r1" REAL, "r2" DOUBLE PRECISION, "bools" BOOLEAN)'
t = connection.query (Table_Name name)
t = connection.query (SQL_Query.Table_Name name)
Test.specify "Concatenate, Shortest and Longest" <|
r = t.aggregate [Concatenate "txt", Shortest "txt", Longest "txt"]
r.columns.at 0 . sql_type . should_equal SQL_Type.text
@ -198,27 +197,27 @@ table_spec =
ssl_pending = if ca_cert_file.is_nothing then "PostgreSQL SSL test not configured." else Nothing
Test.group "[PostgreSQL] SSL connectivity tests" pending=ssl_pending <|
Test.specify "should connect without ssl parameter" <|
Database.connect (Postgres db_host db_port db_name credentials=(Username_And_Password db_user db_password)) . should_succeed
Database.connect (Postgres db_host db_port db_name credentials=(Credentials.Username_And_Password db_user db_password)) . should_succeed
Test.specify "should connect, requiring SSL" <|
Database.connect (Postgres db_host db_port db_name credentials=(Username_And_Password db_user db_password) use_ssl=SSL_Mode.Require) . should_succeed
Database.connect (Postgres db_host db_port db_name credentials=(Credentials.Username_And_Password db_user db_password) use_ssl=SSL_Mode.Require) . should_succeed
Test.specify "should connect be able to verify the certificate" <|
Database.connect (Postgres db_host db_port db_name credentials=(Username_And_Password db_user db_password) use_ssl=(SSL_Mode.Verify_CA ca_cert_file)) . should_succeed
Database.connect (Postgres db_host db_port db_name credentials=(Credentials.Username_And_Password db_user db_password) use_ssl=(SSL_Mode.Verify_CA ca_cert_file)) . should_succeed
## Default certificate should not accept the self signed certificate.
ca_fail = Database.connect (Postgres db_host db_port db_name credentials=(Username_And_Password db_user db_password) use_ssl=SSL_Mode.Verify_CA)
ca_fail = Database.connect (Postgres db_host db_port db_name credentials=(Credentials.Username_And_Password db_user db_password) use_ssl=SSL_Mode.Verify_CA)
ca_fail.is_error . should_equal True
ca_fail.catch SQL_Error . is_a SQL_Error . should_equal True
Test.specify "should connect be able to verify the host name against the certificate" <|
Database.connect (Postgres db_host db_port db_name credentials=(Username_And_Password db_user db_password) use_ssl=(SSL_Mode.Full_Verification ca_cert_file)) . should_succeed
Database.connect (Postgres db_host db_port db_name credentials=(Credentials.Username_And_Password db_user db_password) use_ssl=(SSL_Mode.Full_Verification ca_cert_file)) . should_succeed
alternate_host = Environment.get "ENSO_DATABASE_TEST_ALTERNATE_HOST" . if_nothing <|
if db_host == "127.0.0.1" then "localhost" else Nothing
pending_alternate = if alternate_host.is_nothing then "Alternative host name not configured." else Nothing
Test.specify "should fail to connect with alternate host name not valid in certificate" pending=pending_alternate <|
ca_fail = Database.connect (Postgres alternate_host db_port db_name credentials=(Username_And_Password db_user db_password) use_ssl=(SSL_Mode.Full_Verification ca_cert_file))
ca_fail = Database.connect (Postgres alternate_host db_port db_name credentials=(Credentials.Username_And_Password db_user db_password) use_ssl=(SSL_Mode.Full_Verification ca_cert_file))
ca_fail.is_error . should_equal True
ca_fail.catch SQL_Error . is_a SQL_Error . should_equal True
@ -228,7 +227,7 @@ table_spec =
connection = Error.throw message
run_tests connection pending=message
False ->
connection = Database.connect (Postgres (db_host_port.at 0) db_port db_name credentials=(Username_And_Password db_user db_password))
connection = Database.connect (Postgres (db_host_port.at 0) db_port db_name credentials=(Credentials.Username_And_Password db_user db_password))
run_tests connection db_name
@ -240,18 +239,18 @@ pgpass_spec = Test.group "[PostgreSQL] .pgpass" <|
Test.specify "should correctly parse the file, including escapes, blank lines and comments" <|
result = Pgpass.parse_file pgpass_file
result.length . should_equal 12
e1 = Pgpass_Entry_Data "localhost" "5432" "postgres" "postgres" "postgres"
e2 = Pgpass_Entry_Data "192.168.4.0" "1234" "foo" "bar" "baz"
e3 = Pgpass_Entry_Data "host with : semicolons in it? what?" "*" "*" "*" "well yes, that is possible, the :password: can contain those as well"
e4 = Pgpass_Entry_Data ":" ":" ":" ":" ":"
e5 = Pgpass_Entry_Data "you can escape an escape too: see \\" "*" "*" "*" "yes it is possible"
e6 = Pgpass_Entry_Data "other escapes like \n or \? " "*" "*" "*" "are just parsed as-is"
e7 = Pgpass_Entry_Data "a trailing escape character" "*" "*" "*" "is treated as a regular slash\"
e8 = Pgpass_Entry_Data "passwords should preserve leading space" "*" "*" "*" " pass"
e9 = Pgpass_Entry_Data "\:" "*" "*" "*" "\:"
e10 = Pgpass_Entry_Data "::1" "*" "database_name" "user_that_has_no_password" ""
e11 = Pgpass_Entry_Data "*" "*" "*" "*" "fallback_password"
e12 = Pgpass_Entry_Data "order_matters" "1234" "this" "will_still_match_the_fallback_password" "not_this_one"
e1 = Pgpass.Pgpass_Entry.Value "localhost" "5432" "postgres" "postgres" "postgres"
e2 = Pgpass.Pgpass_Entry.Value "192.168.4.0" "1234" "foo" "bar" "baz"
e3 = Pgpass.Pgpass_Entry.Value "host with : semicolons in it? what?" "*" "*" "*" "well yes, that is possible, the :password: can contain those as well"
e4 = Pgpass.Pgpass_Entry.Value ":" ":" ":" ":" ":"
e5 = Pgpass.Pgpass_Entry.Value "you can escape an escape too: see \\" "*" "*" "*" "yes it is possible"
e6 = Pgpass.Pgpass_Entry.Value "other escapes like \n or \? " "*" "*" "*" "are just parsed as-is"
e7 = Pgpass.Pgpass_Entry.Value "a trailing escape character" "*" "*" "*" "is treated as a regular slash\"
e8 = Pgpass.Pgpass_Entry.Value "passwords should preserve leading space" "*" "*" "*" " pass"
e9 = Pgpass.Pgpass_Entry.Value "\:" "*" "*" "*" "\:"
e10 = Pgpass.Pgpass_Entry.Value "::1" "*" "database_name" "user_that_has_no_password" ""
e11 = Pgpass.Pgpass_Entry.Value "*" "*" "*" "*" "fallback_password"
e12 = Pgpass.Pgpass_Entry.Value "order_matters" "1234" "this" "will_still_match_the_fallback_password" "not_this_one"
entries = [e1, e2, e3, e4, e5, e6, e7, e8, e9, e10, e11, e12]
result.should_equal entries
@ -313,7 +312,7 @@ connection_setup_spec = Test.group "[PostgreSQL] Connection setup" <|
add_ssl props = props+[Pair_Data 'sslmode' 'prefer']
Test.specify "should use the given credentials" <|
c = Postgres credentials=(Username_And_Password "myuser" "mypass")
c = Postgres credentials=(Credentials.Username_And_Password "myuser" "mypass")
c.jdbc_url . should_equal "jdbc:postgresql://localhost:5432"
c.jdbc_properties . should_equal <| add_ssl [Pair_Data "user" "myuser", Pair_Data "password" "mypass"]

11
test/Table_Tests/src/Database/Redshift_Spec.enso
View File

@ -3,8 +3,7 @@ import Standard.Base.Runtime.Ref
from Standard.Table import Table
import Standard.Database
from Standard.Database import all
from Standard.Database import Database, Redshift, AWS_Credential, SQL_Query
import Standard.Test
@ -17,7 +16,7 @@ redshift_specific_spec connection pending =
Test.group "[Redshift] Info" pending=pending <|
tinfo = Name_Generator.random_name "Tinfo"
connection.execute_update 'CREATE TEMPORARY TABLE "'+tinfo+'" ("strs" VARCHAR, "ints" INTEGER, "bools" BOOLEAN, "reals" REAL)'
t = connection.query (Table_Name tinfo)
t = connection.query (SQL_Query.Table_Name tinfo)
t.insert ["a", Nothing, False, 1.2]
t.insert ["abc", Nothing, Nothing, 1.3]
t.insert ["def", 42, True, 1.4]
@ -82,7 +81,7 @@ connect_via_json_config =
db_name = uri.at 2
user = creds.get 'db_user'
Redshift db_uri db_port db_name credentials=(AWS_Key user access_key secret_key)
Redshift db_uri db_port db_name credentials=(AWS_Credential.Key user access_key secret_key)
connect_via_aws_environment db_host_port =
db_host_port_split = uri_parse db_host_port
@ -94,8 +93,8 @@ connect_via_aws_environment db_host_port =
access_key = Environment.get "AWS_ACCESS_KEY_ID"
secret_key = Environment.get "AWS_SECRET_ACCESS_KEY"
credentials = if (access_key.is_nothing || secret_key.is_nothing) then AWS_Profile db_user (Environment.get "AWS_PROFILE" . if_nothing '') else
AWS_Key db_user access_key secret_key
credentials = if (access_key.is_nothing || secret_key.is_nothing) then AWS_Credential.Profile db_user (Environment.get "AWS_PROFILE" . if_nothing '') else
AWS_Credential.Key db_user access_key secret_key
Redshift db_uri db_port db_name credentials=credentials

9
test/Table_Tests/src/Database/SQLite_Spec.enso
View File

@ -3,8 +3,7 @@ import Standard.Base.Runtime.Ref
from Standard.Table import Table
import Standard.Database
from Standard.Database import all
from Standard.Database import Database, SQLite, In_Memory, SQL_Query
from Standard.Database.Errors import SQL_Error_Data
import Standard.Test
@ -67,17 +66,17 @@ sqlite_specific_spec connection =
Test.group "[SQLite] Error Handling" <|
Test.specify "should wrap errors" <|
connection.read (Raw_SQL "foobar") . should_fail_with SQL_Error_Data
connection.read (SQL_Query.Raw_SQL "foobar") . should_fail_with SQL_Error_Data
connection.execute_update "foobar" . should_fail_with SQL_Error_Data
action = connection.read (Raw_SQL "SELECT A FROM undefined_table")
action = connection.read (SQL_Query.Raw_SQL "SELECT A FROM undefined_table")
action . should_fail_with SQL_Error_Data
action.catch.to_text . should_equal "There was an SQL error: '[SQLITE_ERROR] SQL error or missing database (no such table: undefined_table)'. [Query was: SELECT A FROM undefined_table]"
Test.group "[SQLite] Metadata" <|
tinfo = Name_Generator.random_name "Tinfo"
connection.execute_update 'CREATE TABLE "'+tinfo+'" ("strs" VARCHAR, "ints" INTEGER, "bools" BOOLEAN, "reals" REAL)'
t = connection.query (Table_Name tinfo)
t = connection.query (SQL_Query.Table_Name tinfo)
t.insert ["a", Nothing, False, 1.2]
t.insert ["abc", Nothing, Nothing, 1.3]
t.insert ["def", 42, True, 1.4]

5
test/Visualization_Tests/src/SQL_Spec.enso
View File

@ -1,7 +1,6 @@
from Standard.Base import all
from Standard.Database import all
import Standard.Database
from Standard.Database import Database, SQLite, SQL_Query
import Standard.Visualization.SQL.Visualization as Visualization
@ -9,7 +8,7 @@ import Standard.Test
visualization_spec connection =
connection.execute_update 'CREATE TABLE "T" ("A" VARCHAR, "B" INTEGER, "C" INTEGER)'
t = connection.query (Table_Name "T")
t = connection.query (SQL_Query.Table_Name "T")
Test.group "SQL Visualization" <|
Test.specify "should provide type metadata for interpolations" <|
q = t.filter ((t.at "B" == 2) && (t.at "A" == True)) . at "C"

4
test/Visualization_Tests/src/Table_Spec.enso
View File

@ -3,7 +3,7 @@ from Standard.Base import all
from Standard.Table import Table, Aggregate_Column
from Standard.Database import SQLite
import Standard.Database
from Standard.Database import Database
import Standard.Database.Data.Table.Table as Database_Table
import Standard.Visualization.Table.Visualization as Visualization
@ -32,7 +32,7 @@ visualization_spec connection =
Test.group "Table Visualization" <|
Test.specify "should wrap internal errors" <|
bad_table = Database_Table.Table_Data Nothing Nothing Nothing Nothing
bad_table = Database_Table.Value Nothing Nothing Nothing Nothing
vis = Visualization.prepare_visualization bad_table 2
json = Json.from_pairs [["error", "Method `meta_index` of Nothing could not be found."]]
vis . should_equal json.to_text

6
test/Visualization_Tests/src/Visualization_Spec.enso
View File

@ -6,11 +6,11 @@ import Standard.Visualization
import Standard.Test
from Standard.Visualization.File_Upload import File_Being_Uploaded_Data
import Standard.Visualization.File_Upload.File_Being_Uploaded
spec = Test.group "File uploads" <|
Test.specify "should be able to be signalled as uploading" <|
Visualization.file_uploading "file" . should_fail_with File_Being_Uploaded_Data
Visualization.file_uploading "file" . should_fail_with File_Being_Uploaded.Value
Test.specify "should work whether a textual or file path is provided" <|
result_file = Visualization.file_uploading Examples.csv . catch
@ -18,5 +18,3 @@ spec = Test.group "File uploads" <|
result_text = Visualization.file_uploading Examples.csv_path . catch
result_text.file_path . should_equal Examples.csv_path