Hasura - Citus Compatibility
As Citus is an extension of Postgres, the way it functions with Hasura is also very similar. Currently the following features are supported with Citus and Hasura:
Querying from all kinds of tables and views is currently supported. This includes local, reference and distributed tables. All the tables can be tracked from the Console.
The following table describes the supported relationships based on the supported joins in Citus:
|To Local||To Reference||To Distributed|
|From Local||Object, Array||Object, Array|
|From Reference||Object, Array||Object, Array|
|From Distributed||Object||Object, Array|
The Hasura Console allows you to add all the supported relationships.
All permissions work like on Postgres without any restrictions.
plpgsql functions are supported on Hasura with the
- Fetching relationships as part of the function’s response is currently not supported
Mutations are supported in GraphQL Engine with the following restrictions:
- Fetching relationship data as part of
returningis not yet supported
Live Queries and Streaming Subscriptions are supported with Citus.
Citus does not yet support creating triggers (See issue) on reference tables. Hence this is currently not supported.
Computed fields are currently supported on Postgres and BigQuery only. Raise a GitHub issue to request support for computed fields on Citus sources.
Naming conventions are currently only implemented as an experimental feature on Postgres sources. See docs.