Avoid marking buffer dirty when VACUUM has no work to do. When wal_level = 'hot_standby' we touched the last page of the relation during a VACUUM, even if nothing else had happened. That would alter the LSN of the last block and set the mtime of the relation file unnecessarily. Noted by Thom Brown.
Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/c1458cc495ff800cd176a1c2e56d8b62680d9b71 Modified Files -------------- src/backend/access/nbtree/nbtpage.c | 12 ++++++++---- 1 files changed, 8 insertions(+), 4 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
