Files
Charis ec64135f9d perf(pg-meta): scope column privileges query to a single table (#48553)
## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.

YES

## What kind of change does this PR introduce?

Performance improvement

## What is the current behavior?

The column privileges page in Studio only ever renders one table, but
the underlying query still `aclexplode`s every column in the whole
schema and filters the result client-side.

## What is the new behavior?

Adds a scoped SQL path that prunes `pg_class`/`pg_namespace` to the
requested schema+table before exploding ACLs, gated behind the
`pgMetaScopedIntrospection` flag, with a plan-guard test asserting
`pg_class`/`pg_attribute` stay index-driven. Studio's query hook and
cache keys now thread the selected table through so column-privilege
invalidation and cold-load races are scoped correctly, and the page
fetches per-table instead of per-schema.

## Additional context

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Improvements**
* Column privileges are now scoped to the selected schema and table for
more accurate results.
* Changing schemas automatically updates the table selection and
refreshes the displayed privileges.
* Privilege updates now refresh only the relevant schema, table, and
column data.
* Loading states are handled more accurately when no table is selected.

* **Bug Fixes**
* Improved consistency between scoped and unscoped column privilege
results, including table-, column-, and grant-option privileges.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-31 15:26:37 -04:00
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