Commit Graph

27 Commits

Author SHA1 Message Date
Alexis King
18e8fbab1b
Parameterize all SQL values when multiplexing subscription queries (#2942)
Also, add support for explaining subscriptions while we’re at it.
2019-09-30 14:50:57 -05:00
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
f7c99689da support intersect filters on raster columns (close #2613) (#2704)
* initial raster support

* _st_intersects_geom -> _st_intersects_geom_nband

* add tests

* update docs

* improve docs

As requested by @marionschleifer

* new type for raster values

Suggested by @lexi-lambda

* replace `SEUnsafe "NULL"` with SENull
2019-08-29 18:37:05 +05:30
Alexis King
7fa1452ca0 server: Rename a whole bunch of things
* PGTypeSimple → PGTypeScalar
* PGScalarTyped → WithScalarType
* PGColValue → PGScalarValue
* PGColInfo → PGColumnInfo
* PGRawColInfo → PGRawColumnInfo
* mkScalarSessionVar → mkTypedSessionVar
2019-08-26 00:54:56 -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
Alexis King
9be6f706e6 Refactor GCtx to split query and mutation root operations
This mostly simplifies the RootFlds type to make it clearer what it’s
used for, but it has the convenient side-effect of preventing some
“impossible” cases using the type system.
2019-08-26 00:54:56 -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
Anon Ray
8f1e7dbc8d breaking: server logging changes (close #507, close #2171) (#1835) 2019-07-11 05:37:06 +00:00
Vamshi Surabhi
f1cf6d0b17
allow session variables in operators which expect array input (#2475) 2019-07-10 15:49:58 +05:30
Rakesh Emmadi
0b210cc245 support allow-list for graphql queries (closes #989) (#2075) 2019-05-16 11:43:25 +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
Vamshi Surabhi
24dcefb142
use bytestring builder to represent encoded json (#1800) 2019-03-18 21:52:21 +05:30
Rakesh Emmadi
5f274b5527 fix mutation returning when relationships are present (fix #1576) (#1703)
If returning field contains nested selections then mutation is performed in two steps
1. Mutation is performed with returning columns of any primary key and unique constraints
2. returning fields are queried on rows returned by selecting from table by filtering with column values returned in Step 1.

Since mutation takes two courses based on selecting relations in returning field, it is hard to maintain sequence of prepared arguments (PrepArg) generated while resolving returning field. So, we're using txtConverter instead of prepare to resolve mutation fields.
2019-03-07 15:54:07 +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
Rakesh Emmadi
7ff1c8829a add PostGIS operators in boolean expressions (closes #1051) (#1372) 2019-01-17 11:51:38 +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
Anon Ray
512ee6fb9f adds basic support for remote schemas/schema stitching (#952) 2018-11-23 18:32:46 +05:30
Rakesh Emmadi
8c1700e76f improve SQL generation for '_in' operation (close #1013) (#1014) 2018-11-12 18:57:47 +05:30
Rakesh Emmadi
0803738df1 refactor select query generation (#941) 2018-10-31 18:21:20 +05:30
Vamshi Surabhi
8b0082eac1
clean up user variables parsing logic and fix explain api (#869) 2018-10-26 21:27:22 +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
199531cbd9
http and websocket logs now correctly have user information, closes #849 (#850) 2018-10-25 15:07:57 +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