Fixes#10609 by rewriting all our upload-related operations to rely on `DDL_Transaction` - an abstraction that handles 'transactionality' of `CREATE TABLE` statements dependent on if a given backend allows DDLs within transactions or not (if not it emulates transactionality by creating the tables outside of transaction and then dropping them on rollback).
In a sequence of value-level operators, whitespace does not affect relative precedence. Functional operators still follow the space-precedence rules.
The "functional" operators are: `>> << |> |>> <| <<| : .`, application, and any operator containing `<-` or `->`. All other operators are considered value-level operators.
Asymmetric whitespace can still be used to form *operator sections* of value-level operators, e.g. `+2 * 3` is still equivalent to `x -> (x+2) * 3`.
Precedence of application is unchanged, so `f x+y` is still equivalent to `f (x + y)` and `f x+y * z` is still equivalent to `(f (x + y)) * z`.
Any attempt to use spacing to override value-level operator precedence will be caught by the new enso linter. Mixed spacing (for clarity) in value-operator expressions is allowed, as long as it is consistent with the precedences of the operators.
Closes#10366.
# Important Notes
Precedence warnings:
- The parser emits a warning if the whitespace in an expression is inconsistent with its effective precedence.
- A new enso linter can be run with `./run libraries lint`. It parses all `.enso` files in `distribution/lib` and `test`, and reports any errors or warnings. It can also be run on individual files: `cargo run --release --bin check_syntax -- file1 file2...` (the result may be easier to read than the `./run` output).
- The linter is also run as part of `./run lint`, so it is checked in CI.
Additional language change:
- The exponentiation operator (`^`) now has higher precedence than the multiplication class (`*`, `/`, `%`). This change did not affect any current enso files.
Library changes:
- The libraries have been updated. The new warnings were used to identify all affected code; the changes themselves have not been programmatically verified (in many cases their equivalence relies on the commutativity of string concatenation).
- Closes#9486
- All tests are succeeding or marked pending
- Created follow up tickets for things that still need to be addressed, including:
- Fixing upload / table update #10609
- Fixing `Count_Distinct` on Boolean columns #10611
- Running the tests on CI is not part of this PR - to be addressed separately
- Part of #9486
- Fixes `Table.union`, `merge` and `distinct` tests
- Replaces `distinct_on` in `Context` that was actually a Postgres specific addition leaking into the base with a more abstract `Context_Extension` mechanism.
- This allows us to implement the Snowflake-specific `DISTINCT` using `QUALIFY`.
- Related to #9486
- Batching of expression tests
- Fixing arithmetic by simplifying `%` and `/` operations
- Trying to share some more tables, sometimes improving performance sometimes not really
- Adding sorting and other fixes to tests to make them pass: Missing_Values_Spec, Filter_Spec, Map_Spec
- Fixing warnings related to materialization of Decimal->Integer, thus fixing Join_Spec.
- Related to #9486
- Ensures that even though an integer column in Snowflake is represented by `Decimal` type, if the values are small enough, they are materialized as `Integer`.
- If the values are larger, they are still read in as `Decimal`.
- Adds tests for some other `Decimal` edge cases (various precisions and scales), and for `Float`.
- Related to #9486
- Fixes types in literal tables that are used throughout the tests
- Tries to makes testing faster by disabling some edge cases, trying batching some queries, re-using the main connection and trying to re-use tables more
- Implements date/time type mapping and operations for Snowflake
- Updates type mapping to correctly reflect what Snowflake does
- Disables warnings for Integer->Decimal coercion as that's too annoying and implicitly understood in Snowflake
- Allows to select a Decimal column with `..By_Type ..Integer` (only in Snowflake backend) because the Decimal column there is its 'de-facto' Integer column replacement.
- Removes `First` and `Last` from the `Standard.Base` exports.
- Enable auto-scoping for all `Index_Sub_Range` and `Text_Sub_Range`.
- Update all use of those methods to use auto-scoping.
* treat scale nothing as unspecifed
* cast to decimal
* float int biginteger
* conversion failure ints
* loss of decimal precision
* precision loss for mixed column to float
* mixed columns
* loss of precision on inexact float conversion
* cleanup, reuse
* changelog
* review
* no fits bd
* no warning on 0.1 conversion
* fmt
* big_decimal_fetcher
* default fetcher and statement setting
* round-trip d
* fix warning
* expr +10
* double builder retype to bigdecimal
* Use BD fetcher for underspecified postgres numeric column, not inferred builder, and do not use biginteger builder for integral bigdecimal values
* fix tests
* fix test
* cast_op_type
* no-ops for other dialects
* Types
* sum + avg
* avg + sum test
* fix test
* update agg type inference test
* wip
* is_int8, stddev
* more doc, overflow check
* fmt
* finish round-trip test
* wip
- Part of #9486
- Fixing our tests to not rely on deterministic ordering of created Tables in Database backends
- Before, SQLite and Postgres used to mostly return rows in the order they were inserted in, but Snowflake does not.
- Fixing various parts of Snowflake dialect.
- Part of #9486
- Building on top of initial work by @jdunkerley and finishing it
- Reverted the changes to the Postgres_Dialect from last Snowflake work and split the Snowflake_Dialect into a separate module.
- Moved from `rounding_decimal_places_not_allowed_for_floats` to `supports_float_round_decimal_places` (as too confusing).
- Added Snowflake_Dialect type.
- Extracted `Snowflake_Spec` into separate `Snowflake_Tests`
- It imports the common tests from `Table_Tests`.
- Some initial adaptations to make the snowflake dialect not-crash.
- Adding `Internals_Access` proxy to allow external implementations to access our internal data structures without directly exposing them to users. Users should not use these.
- Adding profiling of SQL to check performance.
Move the types from `Standard.Table.Data` to `Standard.Table`.
Exceptions:
- `Standard.Table.Data.Report_Unmatched` => `Standard.Table.Constants`.
- `Standard.Table.Data.Join_Kind_Cross` => `Standard.Table.Internal.Join_Kind_Cross`.
Also removed constructor as an atom type.
- `Standard.Table.Extensions.Table_Ref` => `Standard.Table.Internal.Table_Ref`.
- `Standard.Table.Data.Type.Value_Type_Helpers` => `Standard.Table.Internal.Value_Type_Helpers`.
- `Standard.Table.Data.Type.Enso_Types` => `Standard.Table.Internal.Value_Type_Helpers`.
- `Standard.Table.Data.Type.Storage` => `Standard.Table.Internal.Storage`.
Changed all `Standard.Table` imports inside project to be project.
Favoured importing from `Standard.Table.Main` in `Standard.Database`.
Also fixed some linting in Enso_File.
* Initial connection to Snowflake via an account, username and password.
* Fix databases and schemas in Snowflake.
Add warehouses.
* Add warehouse.
Update schema dropdowns.
* Add ability to set warehouse and pass at connect.
* Fix for NPE in license review
* scalafmt
* Separate Snowflake from Database.
* Scala fmt.
* Legal Review
* Avoid using ARROW for snowflake.
* Tidy up Entity_Naming_Properties.
* Fix for separating Entity_Namimg_Properties.
* Allow some tweaking of Postgres dialect to allow snowflake to use as well.
* Working on reading Date, Time and Date Times.
* Changelog.
* Java format.
* Make Snowflake Time and TimeStamp stuff work.
Move some responsibilities to Type_Mapping.
* Make Snowflake Time and TimeStamp stuff work.
Move some responsibilities to Type_Mapping.
* fix
* Update distribution/lib/Standard/Database/0.0.0-dev/src/Connection/Connection.enso
Co-authored-by: Radosław Waśko <radoslaw.wasko@enso.org>
* PR comments.
* Last refactor for PR.
* Fix.
---------
Co-authored-by: Radosław Waśko <radoslaw.wasko@enso.org>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
