Prohibit max_slot_wal_keep_size to value other than -1 during upgrade.
We don't want existing slots in the old cluster to get invalidated during
the upgrade. During an upgrade, we set this variable to -1 via the command
line in an attempt to prevent such invalidations, but users have ways to
override it. This patch ensures the value is not overridden by the user.
Author: Kyotaro Horiguchi
Reviewed-by: Peter Smith, Alvaro Herrera
Discussion: http://postgr.es/m/20231027.115759.2206827438943188717.horikyota.ntt@gmail.com
Branch
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master
Details
-------
https://git.postgresql.org/pg/commitdiff/8bfb231b43d7f6058041483f2b823dd52eac7bf8
Modified Files
--------------
src/backend/access/transam/xlog.c | 19 +++++++++++++++++++
src/backend/replication/slot.c | 16 +++++-----------
src/backend/utils/misc/guc_tables.c | 2 +-
src/include/utils/guc_hooks.h | 2 ++
4 files changed, 27 insertions(+), 12 deletions(-)
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