[v16] Fix database user auto-provisioning#52100
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GavinFrazar merged 1 commit intobranch/v16from Feb 13, 2025
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* Use a custom query to find user db privileges on tables to avoid the "grantor" filter condition in the information_schema.tables_privileges view. This fixes the cases where the grantor for a privilege is set to the table owner rather than the user (teleport) who issued the grant. Most notably, this happens when a superuser grants privileges on a table they do not own to a user. * Grant USAGE on schemas that contain tables where we intend to grant table privileges. This is necessary to use the table privileges we grant. * Wrap all remaining plpgsql procedure creation/calls with retries. * Add a db permissions e2e test for RDS * Expand e2e tests to test with and without a superuser db admin * Significantly speed up the RDS e2e tests by wrapping EventuallyWithT in a helper func that tries the condition func immediately rather than waiting for the first tick duration.
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Changelog: Fixed Postgres database access control privileges auto-provisioning to grant USAGE on schemas as needed for table privileges and fixed an issue that prevented user privileges from being revoked at the end of their session in some cases.
Backports #51945 to branch/v16.
edit: Also backports with the small patch from #52104 to branch/v16.