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Preserve commit timestamps across clean restart

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An oversight in setting the boundaries of known commit timestamps during
startup caused old commit timestamps to become inaccessible after a
server restart.

Author and reporter: Julien Rouhaud
Review, test code: Craig Ringer
This commit is contained in:
Alvaro Herrera
2016-10-24 09:27:24 -03:00
parent 6beb8c75ce
commit c8329f934e
2 changed files with 139 additions and 0 deletions
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2
src/backend/access/transam/commit_ts.c
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@@ -843,6 +843,8 @@ SetCommitTsLimit(TransactionId oldestXact, TransactionId newestXact)
else
{
Assert(ShmemVariableCache->newestCommitTsXid == InvalidTransactionId);
ShmemVariableCache->oldestCommitTsXid = oldestXact;
ShmemVariableCache->newestCommitTsXid = newestXact;
}
LWLockRelease(CommitTsLock);
}