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Tom Lane 8de3e410fa In RelationClearRelation, postpone cache reload if !IsTransactionState(). ... We may process relcache flush requests during transaction startup or shutdown. In general it's not terribly safe to do catalog access at those times, so the code's habit of trying to immediately revalidate unflushable relcache entries is risky. Although there are no field trouble reports that are positively traceable to this, we have been able to demonstrate failure of the assertions recently added in RelationIdGetRelation() and SearchCatCache(). On the other hand, it seems safe to just postpone revalidation of the cache entry until we're inside a valid transaction. The one case where this is questionable is where we're exiting a subtransaction and the outer transaction is holding the relcache entry open --- but if we made any significant changes to the rel inside such a subtransaction, we've got problems anyway. There are mechanisms in place to prevent that (to wit, locks for cross-session cases and CheckTableNotInUse() for intra-session cases), so let's trust to those mechanisms to keep us out of trouble.		12 years ago
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Makefile	Add infrastructure for mapping relfilenodes to relation OIDs.	13 years ago
attoptcache.c	Update copyright for 2014	12 years ago
catcache.c	Update copyright for 2014	12 years ago
evtcache.c	Update copyright for 2014	12 years ago
inval.c	Update copyright for 2014	12 years ago
lsyscache.c	Update copyright for 2014	12 years ago
plancache.c	Update copyright for 2014	12 years ago
relcache.c	In RelationClearRelation, postpone cache reload if !IsTransactionState().	12 years ago
relfilenodemap.c	Update copyright for 2014	12 years ago
relmapper.c	Update copyright for 2014	12 years ago
spccache.c	Update copyright for 2014	12 years ago
syscache.c	Update copyright for 2014	12 years ago
ts_cache.c	Update copyright for 2014	12 years ago
typcache.c	Update copyright for 2014	12 years ago