Support SqlDelight modules to implement PostgreSql extensions #5677
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👋 @griffio This is great! Are there any plans to move this out of a draft state and merge it for use in snapshot builds? We're using SQLDelight now with Postgres and were hoping to leverage pgvector. |
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OK have set for review - I implemented several interesting extensions to see what problems and work-arounds are needed. Keep in mind SqlDelight is really for basic Sql operations - |
Thank you! And, of course. Our PostgreSQL use cases are straightforward (no need for Triggers, etc.). Your change here unblocks pgvector and AI Vector embedding models, which is really what we're (and I'm sure others!) are excited about. |
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Make the PostgreSqlType public so it can be accessed in third party modules
open PostgreSqlTypeResolver for extension and polymorphic calls booleanBinaryExprTypes is a new protected method to allow subclasses to add types
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Any update on snapshots? |
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love seeing stuff being built as extensions <3 |
☢️ Experimental
🐙 Use the SqlDelight module service loader (see sqlite json-module )to implement Postgresql 3rd party extensions - rather than add in the PostgreSql grammar or having to create a new sub dialect.
sqldelight { databases { create("Sample") { dialect(libs.sqldelight.postgresql.dialect) module(project(":postgis-module")) // module can be local project or external dependency } } }🧪 Example extension modules using these changes:
bm25 - text search - https://github.com/griffio/sqldelight-bm25-module-app
pgvector - vector embeddings - https://github.com/griffio/sqldelight-pgvector-module-app
postgis - ever popular - https://github.com/griffio/sqldelight-postgis-module-app
PostgreSqlTypeResolverfor inheritance to allow calling into subclasses - delegation is not enoughPostgreSqlTypefor modules to access existing PostgreSql typesbooleanBinaryExprTypesas modules can add boolean binary operator types