amcheck: Skip unlogged relations during recovery.
contrib/amcheck failed to consider the possibility that unlogged
relations will not have any main relation fork files when running in hot
standby mode. This led to low-level "can't happen" errors that complain
about the absence of a relfilenode file.
To fix, simply skip verification of unlogged index relations during
recovery. In passing, add a direct check for the presence of a main
fork just before verification proper begins, so that we cleanly verify
the presence of the main relation fork file.
Author: Andrey Borodin, Peter Geoghegan
Reported-By: Andrey Borodin
Diagnosed-By: Andrey Borodin
Discussion: https://postgr.es/m/DA9B33AC-53CB-4643-96D4-7A0BBC037FA1@yandex-team.ru
Backpatch: 10-, where amcheck was introduced.
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/6754fe65a4c68c1e3b179080ab62c2f3ff6d877c
Modified Files
--------------
contrib/amcheck/verify_nbtree.c | 45 ++++++++++++++++++++++++++++++++++++-----
1 file changed, 40 insertions(+), 5 deletions(-)
