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Commit057ea34

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Xmin calculations should consider only top transaction IDs, and
therefore starting with GetCurrentTransactionId is wrong. Fixesmiscomputation of RecentGlobalXmin leading to bizarre behaviorreported by Gavin Sherry.
1 parent2820f05 commit057ea34

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-3
lines changed

1 file changed

+3
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‎src/backend/storage/ipc/sinval.c

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/storage/ipc/sinval.c,v 1.67 2004/08/01 17:32:16 tgl Exp $
11+
* $PostgreSQL: pgsql/src/backend/storage/ipc/sinval.c,v 1.68 2004/08/15 17:03:36 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -673,7 +673,7 @@ GetOldestXmin(bool allDbs)
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TransactionIdresult;
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intindex;
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676-
result=GetCurrentTransactionId();
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result=GetTopTransactionId();
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LWLockAcquire(SInvalLock,LW_SHARED);
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@@ -763,7 +763,7 @@ GetSnapshotData(Snapshot snapshot, bool serializable)
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errmsg("out of memory")));
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}
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766-
globalxmin=xmin=GetCurrentTransactionId();
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globalxmin=xmin=GetTopTransactionId();
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/*
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* If we are going to set MyProc->xmin then we'd better get exclusive

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