This PR adds source code documentation for metadata versioning.
Note: Adding `force-skip-ci` label to bypass server tests as this PR only has changes in source code comments.
https://github.com/hasura/graphql-engine-mono/pull/2026
GitOrigin-RevId: f24dcc1579f98e59e40677b99890a8af273bb96e
### Description
A first PR, #1947, removed all the `Arbitrary` stuff from our codebase. But #1740, merged on the same day, added some tests relying on `Arbitrary`. In the merge process, some unneeded `Arbitrary` code got reintroduced.
This PR removes all `Arbitrary` stuff from `src-lib`, and cleans / refactor `Hasura.Generator` in `src-test` to only reduce it to the bare minimum amount of `Arbitrary` instances.
https://github.com/hasura/graphql-engine-mono/pull/1957
GitOrigin-RevId: 7e76009bb022205e3737fca45749411a266cc08c
The `LazyTxT` type was introduced to avoid connecting to Postgres when a given GraphQL request did not require this. However, through the new way query execution plans are represented, this has now _mostly_ been taken care of in a different way, and so no `LazyTxT` action is generated at all for GraphQL requests that do not fetch data from Postgres.
This removes the laziness of `LazyTxT` by simply making it a newtype wrapper around `Q.TxET`. This simplifies a lot of code in `Hasura.Backends.Postgres.Connection`.
https://github.com/hasura/graphql-engine-mono/pull/1959
GitOrigin-RevId: 58b4d5a05d67bc602b59e02ac338f1c3e63859c7
This PR:
- removes a dependency on Postgres' `ToSQL` in other backends
- removes some usage of `unsafePerformIO` in `FronJSON` / `Arbitrary`
- fixes a `Set` into a `HashSet`
- moves some orphan instances where they belong:
- alongside others in `Hasura.Incremental` for `Cacheable`
- in `Hasura.Base.Instances` for `Hashable`
- introduces a local wrapper around ByteString to avoid unsound UTF8 instances
Some of the weird empty lines come from the fact that this PR is an offshoot of #1947.
https://github.com/hasura/graphql-engine-mono/pull/1949
GitOrigin-RevId: ef9d34452946f8466878d8fdda857b0b43816de7
## Description
This PR removes as many constraints as possible from Backend without refactoring the code. Thanks to #1844, a few ToJSON functions can be removed from the IR, and several constraints were simply redundant.
This PR borrows from similar work done as part of #1666.
## Note
To remove constraints more aggressively, I have explored the possibility of _removing Representable altogether_, in a [separate commit](https://github.com/hasura/graphql-engine-mono/compare/nicuveo/remove-extension-constraints..nicuveo/tentative-remove-representable). I am not convinced it's a good idea in terms of readability of the code, but it's a possibility.
Further work includes deciding what we want to do with `Show` and `ToTxt`; see #1747.
https://github.com/hasura/graphql-engine-mono/pull/1843
GitOrigin-RevId: 337324ad90cb8f86f06e1c5a36aa44bb414e195a
Query plan caching was introduced by - I believe - hasura/graphql-engine#1934 in order to reduce the query response latency. During the development of PDV in hasura/graphql-engine#4111, it was found out that the new architecture (for which query plan caching wasn't implemented) performed comparably to the pre-PDV architecture with caching. Hence, it was decided to leave query plan caching until some day in the future when it was deemed necessary.
Well, we're in the future now, and there still isn't a convincing argument for query plan caching. So the time has come to remove some references to query plan caching from the codebase. For the most part, any code being removed would probably not be very well suited to the post-PDV architecture of query execution, so arguably not much is lost.
Apart from simplifying the code, this PR will contribute towards making the GraphQL schema generation more modular, testable, and easier to profile. I'd like to eventually work towards a situation in which it's easy to generate a GraphQL schema parser *in isolation*, without being connected to a database, and then parse a GraphQL query *in isolation*, without even listening any HTTP port. It is important that both of these operations can be examined in detail, and in isolation, since they are two major performance bottlenecks, as well as phases where many important upcoming features hook into.
Implementation
The following have been removed:
- The entirety of `server/src-lib/Hasura/GraphQL/Execute/Plan.hs`
- The core phases of query parsing and execution no longer have any references to query plan caching. Note that this is not to be confused with query *response* caching, which is not affected by this PR. This includes removal of the types:
- - `Opaque`, which is replaced by a tuple. Note that the old implementation was broken and did not adequately hide the constructors.
- - `QueryReusability` (and the `markNotReusable` method). Notably, the implementation of the `ParseT` monad now consists of two, rather than three, monad transformers.
- Cache-related tests (in `server/src-test/Hasura/CacheBoundedSpec.hs`) have been removed .
- References to query plan caching in the documentation.
- The `planCacheOptions` in the `TenantConfig` type class was removed. However, during parsing, unrecognized fields in the YAML config get ignored, so this does not cause a breaking change. (Confirmed manually, as well as in consultation with @sordina.)
- The metrics no longer send cache hit/miss messages.
There are a few places in which one can still find references to query plan caching:
- We still accept the `--query-plan-cache-size` command-line option for backwards compatibility. The `HASURA_QUERY_PLAN_CACHE_SIZE` environment variable is not read.
https://github.com/hasura/graphql-engine-mono/pull/1815
GitOrigin-RevId: 17d92b254ec093c62a7dfeec478658ede0813eb7
## Description
Thanks to #1664, the Metadata API types no longer require a `ToJSON` instance. This PR follows up with a cleanup of the types of the arguments to the metadata API:
- whenever possible, it moves those argument types to where they're used (RQL.DDL.*)
- it removes all unrequired instances (mostly `ToJSON`)
This PR does not attempt to do it for _all_ such argument types. For some of the metadata operations, the type used to describe the argument to the API and used to represent the value in the metadata are one and the same (like for `CreateEndpoint`). Sometimes, the two types are intertwined in complex ways (`RemoteRelationship` and `RemoteRelationshipDef`). In the spirit of only doing uncontroversial cleaning work, this PR only moves types that are not used outside of RQL.DDL.
Furthermore, this is a small step towards separating the different types all jumbled together in RQL.Types.
## Notes
This PR also improves several `FromJSON` instances to make use of `withObject`, and to use a human readable string instead of a type name in error messages whenever possible. For instance:
- before: `expected Object for Object, but encountered X`
after: `expected Object for add computed field, but encountered X`
- before: `Expecting an object for update query`
after: `expected Object for update query, but encountered X`
This PR also renames `CreateFunctionPermission` to `FunctionPermissionArgument`, to remove the quite surprising `type DropFunctionPermission = CreateFunctionPermission`.
This PR also deletes some dead code, mostly in RQL.DML.
This PR also moves a PG-specific source resolving function from DDL.Schema.Source to the only place where it is used: App.hs.
https://github.com/hasura/graphql-engine-mono/pull/1844
GitOrigin-RevId: a594521194bb7fe6a111b02a9e099896f9fed59c
GJ IR changes cherry-picked from the original GJ branch. There is a separate (can be merged independently) PR for metadata changes (#1727) and there will be a different PR upcoming PR for execution changes.
https://github.com/hasura/graphql-engine-mono/pull/1810
Co-authored-by: Vamshi Surabhi <6562944+0x777@users.noreply.github.com>
GitOrigin-RevId: c31956af29dc9c9b75d002aba7d93c230697c5f4
## Description
This PR fixes an oversight in the implementation of the resolvers of different backends. To implement resolution from environment variables, both MSSQL and BigQuery were directly fetching the process' environment variables, instead of using the careful curated set we thread from main. It was working just fine on OSS, but is failing on Cloud.
This PR fixes this by adding an additional argument to `resolveSourceConfig`, to ensure that backends always use the correct set of variables.
https://github.com/hasura/graphql-engine-mono/pull/1891
GitOrigin-RevId: 58644cab7d041a8bf4235e2acfe9cf71533a92a1
### Description
This PR is the first of several PRs meant to introduce Generalized Joins. In this first PR, we add non-breaking changes to the Metadata types for DB-to-DB remote joins. Note that we are currently rejecting the new remote join format in order to keep folks from breaking their metadata (in case of a downgrade). These issues will be tackled (and JSON changes reverted) in subsequent PRs.
This PR also changes the way we construct the schema cache, and breaks the way we process sources in two steps: we first resolve each source and construct a cache of their tables' raw info, then in a second step we build the source output. This is so that we have access to the target source's tables when building db-to-db relationships.
### Notes
- this PR contains a few minor cleanups of the schema
- it also fixes a bug in how we do renames in remote schema relationships
- it introduces cross-source schema dependencies
https://github.com/hasura/graphql-engine-mono/pull/1727
Co-authored-by: Evie Ciobanu <1017953+eviefp@users.noreply.github.com>
GitOrigin-RevId: f625473077bc5fff5d941b70e9a116192bc1eb22
In the same vein as #1762, but in less critical: we have some old instances that were made manual because of AnyBackend but that don't need to be anymore.
https://github.com/hasura/graphql-engine-mono/pull/1866
GitOrigin-RevId: f1515330859e70531139f8edb21bd016441f8e8d
During the "generalization" of the code, we removed the [generated instances](9d63187803 (diff-7b8382ab20e441fa214586be491eb6f7ca904d8b20ed97894c16a339be45219aL72)) of `Eq` and `Hashable` in favour of manually written ones, because for a time we were struggling with `AnyBackend`.
In the process, we lost one constructor, `MOEndpoint`. It's unlikely to have ever been an issue, since duplicate endpoints are unlikely, but it is nonetheless wrong.
This PR simply goes back to default derived instances, now that we can, fixing the problem and making the code simpler.
---
However, after filing this PR, I realized **it broke rest endpoint tests**. Upon closer inspection, it turns out that while we had proper checks in place, because of this bug we were actually failing _differently_ during metadata checks. This PR actually improves error messages for invalid endpoint configurations?! 🙀
This is a tiny bit scary. ^^'
https://github.com/hasura/graphql-engine-mono/pull/1762
GitOrigin-RevId: c4897d1f3ae92d18c44c87d2f58258c66f716686
The following has been tested locally:
1. [x] Uses the default query limit when `global_select_limit` is not present in the `metadata` configuration
2. [x] Uses the provided number when present in the configuration (tested with `1`)
3. [x] Throws an error if the provided value is not a parseable non-negative number (because bigquery throws an error when limits are negative)
https://github.com/hasura/graphql-engine-mono/pull/1816
Co-authored-by: Abby Sassel <3883855+sassela@users.noreply.github.com>
GitOrigin-RevId: e21157ce9ca8f8130b3b01e91ed048e79f376293
