Fix catcache invalidation of a list entry that's being built
If a new catalog tuple is inserted that belongs to a catcache list
entry, and cache invalidation happens while the list entry is being
built, the list entry might miss the newly inserted tuple.
To fix, change the way we detect concurrent invalidations while a
catcache entry is being built. Keep a stack of entries that are being
built, and apply cache invalidation to those entries in addition to
the real catcache entries. This is similar to the in-progress list in
relcache.c.
Back-patch to all supported versions.
Reviewed-by: Noah Misch
Discussion: https://www.postgresql.org/message-id/2234dc98-06fe-42ed-b5db-ac17384dc880@iki.fi
Branch
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REL_16_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/91fc447c21d38f6631480ae6f252dbf4211b10b2
Modified Files
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src/backend/utils/cache/catcache.c | 231 +++++++++++++++++++++++--------------
src/backend/utils/cache/inval.c | 2 +-
src/include/utils/catcache.h | 1 +
src/tools/pgindent/typedefs.list | 1 +
4 files changed, 148 insertions(+), 87 deletions(-)
