Fix buffer pin leak in heap update redo routine. In a heap update, if the old and new tuple were on different pages, and the new page no longer existed (because it was subsequently truncated away by vacuum), heap_xlog_update forgot to release the pin on the old buffer. This bug was introduced by the "Fix multiple problems in WAL replay" patch, commit 3bbf668de9f1bc172371681e80a4e769b6d014c8 (on master branch).
With full_page_writes=off, this triggered an "incorrect local pin count" error later in replay, if the old page was vacuumed. This fixes bug #7969, reported by Yunong Xiao. Backpatch to 9.0, like the commit that introduced this bug. Branch ------ REL9_1_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/f4ecfbcaf046845b58c551184449e8e438d44c69 Modified Files -------------- src/backend/access/heap/heapam.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
