· 13 min · PostgreSQL

The Deep End

Loch Ness Monster emerging from a swimming pool surrounded by ducks, with pool ladder and facilities visible in the background. Dive deeper into connection pooling with five more PostgreSQL poolers: Odyssey, pgagroal, Supavisor, PgDoorman, and ProxySQL, plus where your cloud already…

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· 6 min · PostgreSQL

All Your GUCs in a Row: notify_buffers

A mallard duck holds a smartphone displaying a list of "Quack" entries, looking at the screen. The `notify_buffers` GUC tunes a 128kB cache for PostgreSQL's LISTEN/NOTIFY queue—and almost never matters.

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· 14 min · PostgreSQL

Everyone into the Pool

Elephant diving into a public swimming pool filled with water and birds, with a diving board and spectators in the background. PostgreSQL's simple one-process-per-connection model is expensive.

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· 4 min · Alerts, PostgreSQL

The Vector That Lied About Its Dimensions

A vector index build in pgvector 0.8.6 and earlier trusted a vector's header over the column's dimension count, allowing out-of-bounds writes.

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· 7 min · PostgreSQL

All Your GUCs in a Row: multixact_member_buffers and multixact_offset_buffers

Three ducks stand in front of a large chalkboard covered with a grid of handwritten numbers. When one long transaction holds row locks on thousands of parents, multixact cache misses can tank insert throughput.

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· 7 min · PostgreSQL

All Your GUCs in a Row: min_wal_size

Duck standing on a brick irrigation channel in a flat agricultural field with rows of green crops stretching to the horizon. `min_wal_size` sets a floor under WAL recycling, not a retention policy—confusing many operators who lose standbys when the floor causes segments to be…

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· 6 min · PostgreSQL

All Your GUCs in a Row: min_parallel_index_scan_size and min_parallel_table_scan_size

Duck with magnifying glass examining an open book in a library with wooden shelves and window light Parallel scans need a minimum table or index size to be considered—but that minimum also sets the bottom rung of the ladder the planner climbs to decide how…

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· 5 min · Alerts, PostgreSQL, Security

Nobody Patches the Pooler

PgBouncer 1.26.0 patches three CVEs, two triggerable without authentication.

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· 11 min · FOSSLaw

OSS IP-law briefing: Friday, October 2, 2026

Siemens shut down OpenRadioss and deleted its repository; the Rocky Enterprise Software Foundation forked it as OpenCourant the same day.

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· 5 min · PostgreSQL

All Your GUCs in a Row: md5_password_warnings

A duck sits beside a laptop displaying a password security warning on a blue screen. PostgreSQL 18 added md5_password_warnings to suppress deprecation notices about MD5 passwords—but it only warns when setting them, not when using them.

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