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Large Objects

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Why PostgreSQL lo_compat_privileges Should Stay Off—and How to Fix LO Permissions

Setting `lo_compat_privileges = on` disables key large-object privilege checks introduced in PostgreSQL 9.0. This article shows how to inspect the effective setting, audit ownership and ACLs, and fix the underlying mismatch with least privilege instead of hiding permission errors.

Security Postgresql

2026-08-27