PostgreSQL: Clearing Up Checksums Confusion
Two small documentation and comment fixes from Daniel Gustafsson clarify that data checksums processes are background workers, not auxiliary processes, aligning code comments and the glossary. Both changes backpatch through version 19.
Duration: PT2M12S
Episode overview
This episode is a short developer briefing from PostgreSQL.
It explains recent repository work in plain language.
- Show: PostgreSQL
- Published: 2026-08-02T13:02:04Z
- Audio duration: PT2M12S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good day, and welcome to PostgreSQL, your developer briefing for August 2nd, 2026.
Today's activity is small but tidy: a two-commit cleanup effort correcting how the codebase and documentation describe the online checksums feature.
The core theme here is terminology accuracy. In commit 7a0299a, Daniel Gustafsson added a comment in the backend type code clarifying that data checksums entries are background workers, not auxiliary processes, as the code structure might suggest at a glance. That fix came directly from a report by Fujii Masao, who…
The companion fix, commit c5ad377, addresses the same misunderstanding in the documentation glossary. The glossary previously described these checksums workers as auxiliary processes. Gustafsson corrected that entry and, while in there, simplified things by merging the separate worker and launcher glossary terms…
Why does this matter beyond wording? Auxiliary processes and background workers are handled differently in PostgreSQL's internals — for monitoring, process management, and how they show up in system views. If code comments and documentation say one thing while the implementation does another, it creates confusion…
Both fixes are…
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