Commit Graph

34 Commits

Author SHA1 Message Date
Rakesh Emmadi
d8d21c1487 support computed fields returning scalars or set of tables (close #1387) (#2917) 2019-10-18 13:59:47 +05:30
Alexis King
e01008413e
Track variable uses within query validation for caching (fix #3097) (#3135)
This fix is a little ugly, but it’s the only simple solution without a
significant refactoring that restructures the relationship between
GraphQL/Validate and GraphQL/Resolve. The ugliness should go away if we
implement something like #2801.
2019-10-16 09:33:34 -05:00
Rakesh Emmadi
9bd5826020 allow customising graphql schema for a table (close #981) (#2509)
* allow customizing GraphQL root field names, close #981

* document v2 track_table API in reference

* support customising column field names in GraphQL schema

* [docs] add custom column fields doc in API reference

* add tests

* rename 'ColField' to 'ColumnField'

* embed column's graphql field in 'PGColumnInfo'

-> Value constructor of 'PGCol' is not exposed
-> Using 'parseJSON' to construct 'PGCol' in 'FromJSON' instances

* avoid using 'Maybe TableConfig'

* refactors & 'custom_column_fields' -> 'custom_column_names'

* cli-test: add configuration field in metadata export test

* update expected keys in `FromJSON` instance of `TableMeta`

* use `buildSchemaCacheFor` to update configuration in v2 track_table

* remove 'GraphQLName' type and use 'isValidName' exposed from parser lib

* point graphql-parser-hs library git repo to hasura

* support 'set_table_custom_fields' query API & added docs and tests
2019-09-19 10:17:36 +05:30
Alexis King
54e6439579 Change the way we determine whether or not queries are reusable
This fixes an issue where queries could incorrectly be considered
reusable if a variable was used in two positions: one where it affected
SQL generation and one where it did not.
2019-09-16 22:00:46 -05:00
Rakesh Emmadi
d9fb0f8780 use named notation for function arguments if any argument is not specified (fix #2730) (#2777)
* use positional arguments in SQL functions
* only allow omitting set of last arguments in functions
* disallow omitting of a non default argument in functions
2019-08-28 14:27:15 -05:00
Alexis King
ed26da59a6 Add support for GraphQL enum types via enum table references
These changes also add a new type, PGColumnType, between PGColInfo and
PGScalarType, and they process PGRawColumnType values into PGColumnType
values during schema cache generation.
2019-08-26 00:54:56 -05:00
Rakesh Emmadi
8ac78fdaec accept null values in order_by input field (fix #2754) (#2755) 2019-08-22 03:14:27 -05:00
Vamshi Surabhi
52bf885f14
refactor schema.hs into multiple modules (#2661)
Mostly moving around things across modules. No change in
functionality.
2019-08-09 14:49:17 +05:30
Rakesh Emmadi
c3c01beccc support null and default values for function arguments (close #2176, close #2250) (#2282) 2019-06-04 18:13:28 +05:30
Vamshi Surabhi
ce243f5899
multiplexed subscriptions (#1934)
* add types to represent unparsed http gql requests

This will help when we add caching of frequently used ASTs

* query plan caching

* move livequery to execute

* add multiplexed module

* session variable can be customised depending on the context

Previously the value was always "current_setting('hasura.user')"

* get rid of typemap requirement in reusable plan

* subscriptions are multiplexed when possible

* use lazytx for introspection to avoid acquiring a pg connection

* refactor to make execute a completely decoupled module

* don't issue a transaction for a query

* don't use current setting for explained sql

* move postgres related types to a different module

* validate variableValues on postgres before multiplexing subs

* don't user current_setting for queries over ws

* plan_cache is only visible when developer flag is enabled

* introduce 'batch size' when multiplexing subscriptions

* bump stackage to 13.16

* fix schema_stitching test case error code

* store hashes instead of actual responses for subscriptions

* internal api to dump subscriptions state

* remove PlanCache from SchemaCacheRef

* allow live query options to be configured on server startup

* capture metrics for multiplexed subscriptions

* more metrics captured for multiplexed subs

* switch to tvar based hashmap for faster snapshotting

* livequery modules do not expose internal details

* fix typo in live query env vars

* switch to hasura's pg-client-hs
2019-04-17 15:18:41 +05:30
Vamshi Surabhi
739ff80a51 refactor graphql query execution logic (#1855) 2019-03-25 23:55:25 +05:30
Toan Nguyen
560c31f9fd add a json path argument to query values inside json columns (close #1598) (#1661) 2019-03-25 19:15:35 +05:30
Vamshi Surabhi
ac1749c764 add type, variable information to input value's ast (close #21) (#1809) 2019-03-20 12:01:49 +05:30
Rakesh Emmadi
377290a058 breaking: correct (de)serialisation of postgres numeric types in json (fix #1523) (#1662) 2019-03-01 17:15:04 +05:30
Rakesh Emmadi
0833d35088 generate scalar types for SQL function arguments (fix #1632) (#1633)
Also involved a refactor of the internals to localise the context needed for each field
2019-02-22 15:57:38 +05:30
Rakesh Emmadi
0bf2457e23 allow exposing postgres functions through GraphQL interface (close #333) (#1073) 2019-01-25 09:01:54 +05:30
Vamshi Surabhi
ec8b2c80b5
refactor to remove warnings especially with orphan instances (#1163)
* remove phase one/two distinction and hdbquery typeclass

* move extensions to default-extensions

* switch to LazyTx which only acquires a connection if needed

* move defns from TH module into Ops module

* remove tojson orphan instance for http exception

* remove orphan instance for dmlp1

* getTopLevelNodes will not throw any exceptions
2018-12-13 12:56:15 +05:30
Rakesh Emmadi
ff6c95c2f8 allow ordering with aggregated fields (close #1039) (#1042) 2018-12-12 18:28:39 +05:30
Rakesh Emmadi
29ba490296 conform to graphql subscription and error spec (close #1056, close #1059) (#1126) 2018-12-04 19:07:38 +05:30
Rakesh Emmadi
58fe579497 support Postgres's DISTINCT ON (close #1040) (#1099) 2018-11-23 07:23:56 +05:30
Dimitrios Mavrommatis
ef6e53a407 change descending ordering to nulls first (fix #1008) (#1009) 2018-11-22 10:28:18 +05:30
Vamshi Surabhi
47dcae1614
fix sql generation for boolean expressions, closes #853 (#1037)
When using self referential relationships in boolean expressions, the exists clause incorrectly uses the table names to qualify columns which will be the same for parent table and the child table. This is now fixed by generating unique aliases as we traverse down the relationships.
2018-11-16 18:10:23 +05:30
Rakesh Emmadi
b719e82e89 add statistical aggregate operations and count on columns (close #1028) (#1029) 2018-11-14 18:29:59 +05:30
Rakesh Emmadi
0803738df1 refactor select query generation (#941) 2018-10-31 18:21:20 +05:30
Rakesh Emmadi
f6ed169219 allow ordering using columns from object relationships (closes #463) (#672)
* allow ordering using columns from object relationships, close #463

* validate table fields in nested insert

* add tests

* add docs

* change 'table_order_by' type from enums to ordered map

* remove unwanted code from 'Schema.hs' file

* 'AnnGObject' is not list of field name and value tuple

* update docs for new order_by type

* use 'InsOrdHashMap' for 'AnnGObj'

* handle empty fields in order_by

* remove '_' prefixes for asc/desc

* fix the changed order_by syntax across the repo
2018-10-26 17:27:33 +05:30
Rakesh Emmadi
a8cee16ab5 support aggregations (closes #786) (#787)
* support for count and aggregations on columns, close #786

* support explain query for aggregations

* '<arr-rel>_agg' in '<table>' type, fix order by for aggregations

* add 'allow_aggregations' key in select permissions

* Add checkbox to toggle count and aggregations on columns on select permission

* align aggregation checkbox with columns div

* improve readability of the generated sql

* alias is needed at the top level aggregation

* throw internal errors for unexpected fields

* rename SelFld to more readable TableAggFld

* rename agg to aggregate
2018-10-26 14:32:43 +05:30
Vamshi Surabhi
ac537330d0 explain a graphql query, similar to explain of an sql statement (close #562) (#805) 2018-10-19 07:45:28 +05:30
Rakesh Emmadi
00d5a5c1a3 insert mutations can now handle nested-data/relationsips (close #343) (#429) 2018-10-05 20:43:51 +05:30
Vamshi Surabhi
32ae105279 improved sql generation for select queries (closes #6, #121, #278) (#643)
Better SQL generation for select queries (the query plans will be the same but much more readable). This closes some long standing issues (#6, #121, #278).
2018-10-05 14:26:47 +05:30
Rakesh Emmadi
daf01c2b9d mutation return type and query type are same (close #315) (#324) 2018-08-30 15:19:21 +05:30
Rakesh Emmadi
efc9fc7ba9 simpler root level select fields using primary keys (fix #304) (#306)
* select fields by primary key col values as argument values, fix #304

* change field name 'table_by_pkey' to 'table_by_pk'
2018-08-27 19:47:03 +05:30
Rakesh Emmadi
0797407dbf respect the nullability of columns in generated schema (fix #256) (#276) 2018-08-10 18:14:44 +05:30
Rakesh Emmadi
9c55490e98 add limit in select permission which overrides limit in query (close #178) (#237) 2018-08-06 17:45:08 +05:30
Vamshi Surabhi
530027cf20 move raven into graphql-engine repo 2018-06-28 00:32:00 +05:30