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Commit3428ef7

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Reverting42b4b0b
Buildfarm issues and other reported issues
1 parent70adf2f commit3428ef7

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3 files changed

+7
-22
lines changed

3 files changed

+7
-22
lines changed

‎src/backend/access/transam/xact.c

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -2137,7 +2137,7 @@ CommitTransaction(void)
21372137
AtEOXact_ComboCid();
21382138
AtEOXact_HashTables(true);
21392139
AtEOXact_PgStat(true);
2140-
AtEOXact_Snapshot(true, false);
2140+
AtEOXact_Snapshot(true);
21412141
AtCommit_ApplyLauncher();
21422142
pgstat_report_xact_timestamp(0);
21432143

@@ -2409,7 +2409,7 @@ PrepareTransaction(void)
24092409
AtEOXact_ComboCid();
24102410
AtEOXact_HashTables(true);
24112411
/* don't call AtEOXact_PgStat here; we fixed pgstat state above */
2412-
AtEOXact_Snapshot(true, true);
2412+
AtEOXact_Snapshot(true);
24132413
pgstat_report_xact_timestamp(0);
24142414

24152415
CurrentResourceOwner=NULL;
@@ -2640,7 +2640,7 @@ CleanupTransaction(void)
26402640
* do abort cleanup processing
26412641
*/
26422642
AtCleanup_Portals();/* now safe to release portal memory */
2643-
AtEOXact_Snapshot(false, false);/* and release the transaction's snapshots */
2643+
AtEOXact_Snapshot(false);/* and release the transaction's snapshots */
26442644

26452645
CurrentResourceOwner=NULL;/* and resource owner */
26462646
if (TopTransactionResourceOwner)

‎src/backend/utils/time/snapmgr.c

Lines changed: 3 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -954,12 +954,7 @@ xmin_cmp(const pairingheap_node *a, const pairingheap_node *b, void *arg)
954954
*
955955
* If there are no more snapshots, we can reset our PGXACT->xmin to InvalidXid.
956956
* Note we can do this without locking because we assume that storing an Xid
957-
* is atomic. We do this because it will allow multi-statement transactions to
958-
* reset their xmin and prevent us from holding back removal of dead rows;
959-
* this has little purpose when we are dealing with very fast statements in
960-
* read committed mode since the xmin will advance quickly anyway. It has no
961-
* use at all when we are running single statement transactions since the xmin
962-
* is reset as part of end of transaction anyway.
957+
* is atomic.
963958
*
964959
* Even if there are some remaining snapshots, we may be able to advance our
965960
* PGXACT->xmin to some degree. This typically happens when a portal is
@@ -1056,7 +1051,7 @@ AtSubAbort_Snapshot(int level)
10561051
*Snapshot manager's cleanup function for end of transaction
10571052
*/
10581053
void
1059-
AtEOXact_Snapshot(boolisCommit,boolisPrepare)
1054+
AtEOXact_Snapshot(boolisCommit)
10601055
{
10611056
/*
10621057
* In transaction-snapshot mode we must release our privately-managed
@@ -1141,17 +1136,7 @@ AtEOXact_Snapshot(bool isCommit, bool isPrepare)
11411136

11421137
FirstSnapshotSet= false;
11431138

1144-
/*
1145-
* During normal commit and abort processing, we call
1146-
* ProcArrayEndTransaction() or ProcArrayClearTransaction() to
1147-
* reset the PgXact->xmin. That call happens prior to the call to
1148-
* AtEOXact_Snapshot(), so we need not touch xmin here at all,
1149-
* accept when we are preparing a transaction.
1150-
*/
1151-
if (isPrepare)
1152-
SnapshotResetXmin();
1153-
1154-
Assert(MyPgXact->xmin==0);
1139+
SnapshotResetXmin();
11551140
}
11561141

11571142

‎src/include/utils/snapmgr.h

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -85,7 +85,7 @@ extern void UnregisterSnapshotFromOwner(Snapshot snapshot, ResourceOwner owner);
8585

8686
externvoidAtSubCommit_Snapshot(intlevel);
8787
externvoidAtSubAbort_Snapshot(intlevel);
88-
externvoidAtEOXact_Snapshot(boolisCommit,boolisPrepare);
88+
externvoidAtEOXact_Snapshot(boolisCommit);
8989

9090
externvoidImportSnapshot(constchar*idstr);
9191
externboolXactHasExportedSnapshots(void);

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