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Heikki Linnakangas 2c47fe16a7 Fix deadlock at startup, if max_prepared_transactions is too small. ... When the startup process recovers transactions by scanning pg_twophase directory, it should clear MyLockedGxact after it's done processing each transaction. Like we do during normal operation, at PREPARE TRANSACTION. Otherwise, if the startup process exits due to an error, it will try to clear the locking_backend field of the last recovered transaction. That's usually harmless, but if the error happens in MarkAsPreparing, while holding TwoPhaseStateLock, the shmem-exit hook will try to acquire TwoPhaseStateLock again, and deadlock with itself. This fixes bug #13128 reported by Grant McAlister. The bug was introduced by commit bb38fb0d, so backpatch to all supported versions like that commit.		11 years ago
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brin	Move BRIN page type to page's last two bytes	11 years ago
common	Add log_min_autovacuum_duration per-table option	11 years ago
gin	Make ginbuild's funcCtx be independent of its tmpCtx.	11 years ago
gist	Fix GiST index-only scans for opclasses with different storage type.	11 years ago
hash	Remove unnecessary variables in _hash_splitbucket().	11 years ago
heap	Optimize locking a tuple already locked by another subxact	11 years ago
index	Add support for index-only scans in GiST.	11 years ago
nbtree	Remove duplicated word in README	11 years ago
rmgrdesc	Merge the various forms of transaction commit & abort records.	11 years ago
spgist	Add support for index-only scans in GiST.	11 years ago
transam	Fix deadlock at startup, if max_prepared_transactions is too small.	11 years ago
Makefile	BRIN: Block Range Indexes	11 years ago