PostgreSQL: Parser and Memory Safety Fixes
PostgreSQL developers addressed six critical bugs spanning parser logic, memory management, and data type handling. The fixes target issues that could cause crashes, data corruption, or incorrect query results.
Duration: PT2M8S
Episode overview
This episode is a short developer briefing from PostgreSQL.
It explains recent repository work in plain language.
- Show: PostgreSQL
- Published: 2026-06-11T13:04:19Z
- Audio duration: PT2M8S
Transcript excerpt
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Good morning, it's June 11th, 2026, and this is your PostgreSQL development briefing.
Today's activity reveals a focused effort on stability and correctness, with six bug fixes addressing fundamental parsing and memory safety issues that could impact production systems.
Two commits tackle parser correctness in query processing. Dean Rasheed's fix in commit 79c65b9 resolves a bug where the parser would return incorrect results when handling parenthesized OLD and NEW references in RETURNING clauses. The root cause was namespace lookup functions ignoring the returning type parameter,…
Memory management and data integrity form another theme. Tom Lane's commit 9d14146 corrects a double-free error in message queue handling that was introduced during a recent Valgrind leak fix. Heikki Linnakangas addressed a long-standing bug in the seg extension where certainty indicators on interval boundaries were…
The remaining fixes target specific subsystems. Bertrand Drouvot resolved a race condition in logical decoding during standby promotion where timeline selection could fail with "WAL segment already removed" errors, impacting availability during failover scenarios. Amit Kapila strengthened…
These…