pg_stat_activity: show NULL stmt start time for walsenders Returning a non-NULL time is pointless, sinc a walsender is not a process that would be running normal transactions anyway, but the code was unintentionally exposing the process start time intermittently, which was not only bogus but it also confused monitoring systems looking for idle transactions. Fix by avoiding all updates in walsenders.
Backpatch to 11, where walsenders started appearing in pg_stat_activity. Reported-by: Tomas Vondra Discussion: https://postgr.es/m/20191209234409.exe7osmyalwkt5j4@development Branch ------ REL_11_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/896db774e5b0a851792f02c8a19ea9b07c9dcc23 Modified Files -------------- src/backend/access/transam/xact.c | 7 +++++++ 1 file changed, 7 insertions(+)