amcheck: Distinguish interrupted page deletion from corruption.
This prevents false-positive reports about "the first child of leftmost
target page is not leftmost of its level", "block %u is not leftmost"
and "left link/right link pair". They appeared if amcheck ran before
VACUUM cleaned things, after a cluster exited recovery between the
first-stage and second-stage WAL records of a deletion. Back-patch to
v11 (all supported versions).
Reviewed by Peter Geoghegan.
Discussion: https://postgr.es/m/20231005025232.c7.nmisch@google.com
Branch
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REL_14_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/42496cba60bc086f3fdba4b3d20426e27100fbfb
Modified Files
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contrib/amcheck/t/005_pitr.pl | 89 +++++++++++++++++++++++++++++++++++++++++
contrib/amcheck/verify_nbtree.c | 83 ++++++++++++++++++++++++++++++++++++--
2 files changed, 168 insertions(+), 4 deletions(-)
