pgpool: Fix: Reset removed config parameters to defaults

From: Taiki Koshino <koshino(at)sraoss(dot)co(dot)jp>
To: pgpool-committers(at)lists(dot)postgresql(dot)org
Subject: pgpool: Fix: Reset removed config parameters to defaults
Date: 2026-09-09 08:16:59
Message-ID: E1x4DUI-00000007khY-05G7@gothos.postgresql.org
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Fix: Reset removed config parameters to defaults

Previously, parameters removed or commented out in pgpool.conf retained
their old values after configuration reload.

Reset such reloadable parameters to their defaults. Handle index-free
and indexed array parameters separately, and leave values not loaded
from pgpool.conf unchanged.

Author: Taiki Koshino <koshino(at)sraoss(dot)co(dot)jp>
Discussion: https://github.com/pgpool/pgpool2/issues/164
Backpatch-through: v4.3

Branch
------
V4_7_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=6b1e286bffa0bf61638e336bbf01a52af592c0b6

Modified Files
--------------
src/config/pool_config.l | 3 +
src/config/pool_config_variables.c | 132 ++++++++++++++++++++++++++++++++++++
src/include/pool_config_variables.h | 2 +-
3 files changed, 136 insertions(+), 1 deletion(-)

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