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| author | Michael Paquier <michael@paquier.xyz> | 2024-12-12 16:59:22 +0900 |
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| committer | Michael Paquier <michael@paquier.xyz> | 2024-12-12 16:59:22 +0900 |
| commit | 4766438aa317e85f3d762847b2b009f91f530b6f (patch) | |
| tree | 688e86595178f1fccf72c96cfc7a677a484f2b6c /src/backend/utils/adt/jsonpath_exec.c | |
| parent | bd10ec529796a13670645e6acd640c6f290df020 (diff) | |
| download | postgresql-4766438aa317e85f3d762847b2b009f91f530b6f.tar.gz postgresql-4766438aa317e85f3d762847b2b009f91f530b6f.zip | |
Adjust some comments about structure properties in pg_stat.h
One comment of PgStat_TableCounts mentioned that its pending stats use
memcmp() to check for the all-zero case if there is any activity. This
is not true since 07e9e28b56, as pg_memory_is_all_zeros() is used.
PgStat_FunctionCounts incorrectly documented that it relied on memcpy().
This has never been correct, and not relevant because function
statistics do not have an all-zero check for pending stats.
Checkpoint and bgwriter statistics have been always relying on memcmp()
or pg_memory_is_all_zeros() (since 07e9e28b56 for the latter), and never
mentioned the dependency on event counters for their all-zero checks.
Let's document these properties, like the table statistics.
Author: Bertrand Drouvot
Discussion: https://postgr.es/m/Z1hNLvcPgVLPxCoc@ip-10-97-1-34.eu-west-3.compute.internal
Diffstat (limited to 'src/backend/utils/adt/jsonpath_exec.c')
0 files changed, 0 insertions, 0 deletions