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Chris van Eijk: Unique per tenant in PostgreSQL: soft delete and RLS leaks

Planet PostgreSQL2026-10-01 08:000 views

Unique constraints in multi-tenant PostgreSQL 17, tested: per tenant or global, soft delete, case, NULLs, ON CONFLICT, and what a duplicate-key error reveals.

Source：https://postgr.es/p/9xk

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Chris van Eijk: Unique per tenant in PostgreSQL: soft delete and RLS leaks

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