KEYNOTE: Postgres 19 Hackers Panel: What’s In, What’s Out, & What’s Next
summary
Postgres 19 reaches feature freeze with concrete wins and clear deferrals: pg_squeeze/pg_repack integration lands in core using logical decoding and fixes long-standing decoding bugs; async I/O gets a worker pool auto-scaling heuristic for background-worker mode; a cleaner resizable shared_memory API is committed to enable future resizable shared_buffers; several multithreading pieces (latchification, subprocess management, concurrent repack) remain unmerged and are slated for Postgres 20, while urgent CVE fixes pull developer focus late in the cycle.
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chapters (12)
- 0:00Music & introduction
- 0:56Life of a committer during freeze
- 2:17New Postgres 19 features and ideas
- 2:39The challenge of tuning async I/O
- 5:56Why Postgres improves every release
- 7:13When promising features miss the cut
- 10:22Late-cycle pressure and commit decisions
- 11:41Bringing pg_repack into core Postgres
- 16:10What’s next after Postgres 19
- 17:25Multithreading roadmap and challenges
- 23:02How collaboration really works in Postgres
- 28:18Time zones, async work, and momentum
