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A log line has two parts: the message, which PostgreSQL decides, and everything in front of it, which you do. log_line_prefix is the join key. Every fact that lets you connect a line to a session, a transaction, a client, or a moment in…
PostgreSQL's log rotation has three parameters that only make sense together: one rotates at clock boundaries, one at file sizes, and one decides whether to…
Cardinality is a consequence of how many dimensions you index your readings by. Here is where the curve bends, measured, and what you can do about it without leaving Postgres. Someone adds a firmware_ver column to the sensor table. It is…
On August 13, 2026, PostgreSQL shipped its biggest security release ever: 28 CVEs closed in a single day. The old record was 11. The community has done its job, a phenomenal one at that! If you run PostgreSQL for critical workloads in…