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Improve comments in slru.{c,h} about segment name format

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slru.h described incorrectly how SLRU segment names are formatted
depending on the segment number and if long or short segment names are
used.  This commit closes the gap with a better description, fitting
with the reality.

Reported-by: Noah Misch
Author: Aleksander Alekseev
Discussion: https://postgr.es/m/20240626002747.dc.nmisch@google.com
Backpatch-through: 17
This commit is contained in:
Michael Paquier
2024-07-23 16:55:09 +09:00
parent db46016304
commit 3b279d89cb
2 changed files with 18 additions and 4 deletions
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7
src/include/access/slru.h
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@ -134,10 +134,9 @@ typedef struct SlruCtlData
bits16 bank_mask;
/*
* If true, use long segment filenames formed from lower 48 bits of the
* segment number, e.g. pg_xact/000000001234. Otherwise, use short
* filenames formed from lower 16 bits of the segment number e.g.
* pg_xact/1234.
* If true, use long segment file names. Otherwise, use short file names.
*
* For details about the file name format, see SlruFileName().
*/
bool long_segment_names;