Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commitf8c2ef3

Browse files
committed
Merge branch 'REL9_5_STABLE' into PGPRO9_5
2 parents7e4dccd +7dfb9b4 commitf8c2ef3

File tree

14 files changed

+270
-48
lines changed

14 files changed

+270
-48
lines changed

‎src/backend/access/heap/heapam.c‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -3579,6 +3579,7 @@ heap_update(Relation relation, ItemPointer otid, HeapTuple newtup,
35793579
ReleaseBuffer(vmbuffer);
35803580
bms_free(hot_attrs);
35813581
bms_free(key_attrs);
3582+
bms_free(id_attrs);
35823583
returnresult;
35833584
}
35843585

@@ -4031,6 +4032,7 @@ heap_update(Relation relation, ItemPointer otid, HeapTuple newtup,
40314032

40324033
bms_free(hot_attrs);
40334034
bms_free(key_attrs);
4035+
bms_free(id_attrs);
40344036

40354037
returnHeapTupleMayBeUpdated;
40364038
}

‎src/backend/access/transam/parallel.c‎

Lines changed: 25 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -627,6 +627,9 @@ void
627627
HandleParallelMessages(void)
628628
{
629629
dlist_iteriter;
630+
MemoryContextoldcontext;
631+
632+
staticMemoryContexthpm_context=NULL;
630633

631634
/*
632635
* This is invoked from ProcessInterrupts(), and since some of the
@@ -637,6 +640,23 @@ HandleParallelMessages(void)
637640
*/
638641
HOLD_INTERRUPTS();
639642

643+
/*
644+
* Moreover, CurrentMemoryContext might be pointing almost anywhere. We
645+
* don't want to risk leaking data into long-lived contexts, so let's do
646+
* our work here in a private context that we can reset on each use.
647+
*/
648+
if (hpm_context==NULL)/* first time through? */
649+
hpm_context=AllocSetContextCreate(TopMemoryContext,
650+
"HandleParallelMessages context",
651+
ALLOCSET_DEFAULT_MINSIZE,
652+
ALLOCSET_DEFAULT_INITSIZE,
653+
ALLOCSET_DEFAULT_MAXSIZE);
654+
else
655+
MemoryContextReset(hpm_context);
656+
657+
oldcontext=MemoryContextSwitchTo(hpm_context);
658+
659+
/* OK to process messages. Reset the flag saying there are more to do. */
640660
ParallelMessagePending= false;
641661

642662
dlist_foreach(iter,&pcxt_list)
@@ -683,6 +703,11 @@ HandleParallelMessages(void)
683703
}
684704
}
685705

706+
MemoryContextSwitchTo(oldcontext);
707+
708+
/* Might as well clear the context on our way out */
709+
MemoryContextReset(hpm_context);
710+
686711
RESUME_INTERRUPTS();
687712
}
688713

‎src/backend/access/transam/xlogreader.c‎

Lines changed: 64 additions & 27 deletions
Original file line numberDiff line numberDiff line change
@@ -844,46 +844,83 @@ XLogRecPtr
844844
XLogFindNextRecord(XLogReaderState*state,XLogRecPtrRecPtr)
845845
{
846846
XLogReaderStatesaved_state=*state;
847-
XLogRecPtrtargetPagePtr;
848847
XLogRecPtrtmpRecPtr;
849-
inttargetRecOff;
850848
XLogRecPtrfound=InvalidXLogRecPtr;
851-
uint32pageHeaderSize;
852849
XLogPageHeaderheader;
853-
intreadLen;
854850
char*errormsg;
855851

856852
Assert(!XLogRecPtrIsInvalid(RecPtr));
857853

858-
targetRecOff=RecPtr %XLOG_BLCKSZ;
854+
/*
855+
* skip over potential continuation data, keeping in mind that it may span
856+
* multiple pages
857+
*/
858+
tmpRecPtr=RecPtr;
859+
while (true)
860+
{
861+
XLogRecPtrtargetPagePtr;
862+
inttargetRecOff;
863+
uint32pageHeaderSize;
864+
intreadLen;
859865

860-
/* scroll back to page boundary */
861-
targetPagePtr=RecPtr-targetRecOff;
866+
/*
867+
* Compute targetRecOff. It should typically be equal or greater than
868+
* short page-header since a valid record can't start anywhere before
869+
* that, except when caller has explicitly specified the offset that
870+
* falls somewhere there or when we are skipping multi-page
871+
* continuation record. It doesn't matter though because
872+
* ReadPageInternal() is prepared to handle that and will read at least
873+
* short page-header worth of data
874+
*/
875+
targetRecOff=tmpRecPtr %XLOG_BLCKSZ;
862876

863-
/* Read the page containing the record */
864-
readLen=ReadPageInternal(state,targetPagePtr,targetRecOff);
865-
if (readLen<0)
866-
gotoerr;
877+
/* scroll back to page boundary */
878+
targetPagePtr=tmpRecPtr-targetRecOff;
867879

868-
header= (XLogPageHeader)state->readBuf;
880+
/* Read the page containing the record */
881+
readLen=ReadPageInternal(state,targetPagePtr,targetRecOff);
882+
if (readLen<0)
883+
gotoerr;
869884

870-
pageHeaderSize=XLogPageHeaderSize(header);
885+
header=(XLogPageHeader)state->readBuf;
871886

872-
/* make sure we have enough data for the page header */
873-
readLen=ReadPageInternal(state,targetPagePtr,pageHeaderSize);
874-
if (readLen<0)
875-
gotoerr;
887+
pageHeaderSize=XLogPageHeaderSize(header);
876888

877-
/* skip over potential continuation data */
878-
if (header->xlp_info&XLP_FIRST_IS_CONTRECORD)
879-
{
880-
/* record headers are MAXALIGN'ed */
881-
tmpRecPtr=targetPagePtr+pageHeaderSize
882-
+MAXALIGN(header->xlp_rem_len);
883-
}
884-
else
885-
{
886-
tmpRecPtr=targetPagePtr+pageHeaderSize;
889+
/* make sure we have enough data for the page header */
890+
readLen=ReadPageInternal(state,targetPagePtr,pageHeaderSize);
891+
if (readLen<0)
892+
gotoerr;
893+
894+
/* skip over potential continuation data */
895+
if (header->xlp_info&XLP_FIRST_IS_CONTRECORD)
896+
{
897+
/*
898+
* If the length of the remaining continuation data is more than
899+
* what can fit in this page, the continuation record crosses over
900+
* this page. Read the next page and try again. xlp_rem_len in the
901+
* next page header will contain the remaining length of the
902+
* continuation data
903+
*
904+
* Note that record headers are MAXALIGN'ed
905+
*/
906+
if (MAXALIGN(header->xlp_rem_len)> (XLOG_BLCKSZ-pageHeaderSize))
907+
tmpRecPtr=targetPagePtr+XLOG_BLCKSZ;
908+
else
909+
{
910+
/*
911+
* The previous continuation record ends in this page. Set
912+
* tmpRecPtr to point to the first valid record
913+
*/
914+
tmpRecPtr=targetPagePtr+pageHeaderSize
915+
+MAXALIGN(header->xlp_rem_len);
916+
break;
917+
}
918+
}
919+
else
920+
{
921+
tmpRecPtr=targetPagePtr+pageHeaderSize;
922+
break;
923+
}
887924
}
888925

889926
/*

‎src/backend/executor/nodeAgg.c‎

Lines changed: 6 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -2666,11 +2666,13 @@ ExecReScanAgg(AggState *node)
26662666
return;
26672667

26682668
/*
2669-
* If we do have the hash table and the subplan does not have any
2670-
* parameter changes, then we can just rescan the existing hash table;
2671-
* no need to build it again.
2669+
* If we do have the hash table, and the subplan does not have any
2670+
* parameter changes, and none of our own parameter changes affect
2671+
* input expressions of the aggregated functions, then we can just
2672+
* rescan the existing hash table; no need to build it again.
26722673
*/
2673-
if (outerPlan->chgParam==NULL)
2674+
if (outerPlan->chgParam==NULL&&
2675+
!bms_overlap(node->ss.ps.chgParam,aggnode->aggParams))
26742676
{
26752677
ResetTupleHashIterator(node->hashtable,&node->hashiter);
26762678
return;

‎src/backend/nodes/copyfuncs.c‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -847,6 +847,7 @@ _copyAgg(const Agg *from)
847847
COPY_POINTER_FIELD(grpOperators,from->numCols*sizeof(Oid));
848848
}
849849
COPY_SCALAR_FIELD(numGroups);
850+
COPY_BITMAPSET_FIELD(aggParams);
850851
COPY_NODE_FIELD(groupingSets);
851852
COPY_NODE_FIELD(chain);
852853

‎src/backend/nodes/outfuncs.c‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -684,7 +684,7 @@ _outAgg(StringInfo str, const Agg *node)
684684
appendStringInfo(str," %u",node->grpOperators[i]);
685685

686686
WRITE_LONG_FIELD(numGroups);
687-
687+
WRITE_BITMAPSET_FIELD(aggParams);
688688
WRITE_NODE_FIELD(groupingSets);
689689
WRITE_NODE_FIELD(chain);
690690
}

‎src/backend/optimizer/plan/createplan.c‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -4535,6 +4535,7 @@ make_agg(PlannerInfo *root, List *tlist, List *qual,
45354535
node->grpColIdx=grpColIdx;
45364536
node->grpOperators=grpOperators;
45374537
node->numGroups=numGroups;
4538+
node->aggParams=NULL;/* SS_finalize_plan() will fill this */
45384539

45394540
copy_plan_costsize(plan,lefttree);/* only care about copying size */
45404541
cost_agg(&agg_path,root,

‎src/backend/optimizer/plan/subselect.c‎

Lines changed: 47 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -81,6 +81,7 @@ static Bitmapset *finalize_plan(PlannerInfo *root,
8181
Bitmapset*valid_params,
8282
Bitmapset*scan_params);
8383
staticboolfinalize_primnode(Node*node,finalize_primnode_context*context);
84+
staticboolfinalize_agg_primnode(Node*node,finalize_primnode_context*context);
8485

8586

8687
/*
@@ -2558,6 +2559,29 @@ finalize_plan(PlannerInfo *root, Plan *plan, Bitmapset *valid_params,
25582559
locally_added_param);
25592560
break;
25602561

2562+
caseT_Agg:
2563+
{
2564+
Agg*agg= (Agg*)plan;
2565+
2566+
/*
2567+
* AGG_HASHED plans need to know which Params are referenced
2568+
* in aggregate calls. Do a separate scan to identify them.
2569+
*/
2570+
if (agg->aggstrategy==AGG_HASHED)
2571+
{
2572+
finalize_primnode_contextaggcontext;
2573+
2574+
aggcontext.root=root;
2575+
aggcontext.paramids=NULL;
2576+
finalize_agg_primnode((Node*)agg->plan.targetlist,
2577+
&aggcontext);
2578+
finalize_agg_primnode((Node*)agg->plan.qual,
2579+
&aggcontext);
2580+
agg->aggParams=aggcontext.paramids;
2581+
}
2582+
}
2583+
break;
2584+
25612585
caseT_WindowAgg:
25622586
finalize_primnode(((WindowAgg*)plan)->startOffset,
25632587
&context);
@@ -2566,7 +2590,6 @@ finalize_plan(PlannerInfo *root, Plan *plan, Bitmapset *valid_params,
25662590
break;
25672591

25682592
caseT_Hash:
2569-
caseT_Agg:
25702593
caseT_Material:
25712594
caseT_Sort:
25722595
caseT_Unique:
@@ -2710,6 +2733,29 @@ finalize_primnode(Node *node, finalize_primnode_context *context)
27102733
(void*)context);
27112734
}
27122735

2736+
/*
2737+
* finalize_agg_primnode: find all Aggref nodes in the given expression tree,
2738+
* and add IDs of all PARAM_EXEC params appearing within their aggregated
2739+
* arguments to the result set.
2740+
*/
2741+
staticbool
2742+
finalize_agg_primnode(Node*node,finalize_primnode_context*context)
2743+
{
2744+
if (node==NULL)
2745+
return false;
2746+
if (IsA(node,Aggref))
2747+
{
2748+
Aggref*agg= (Aggref*)node;
2749+
2750+
/* we should not consider the direct arguments, if any */
2751+
finalize_primnode((Node*)agg->args,context);
2752+
finalize_primnode((Node*)agg->aggfilter,context);
2753+
return false;/* there can't be any Aggrefs below here */
2754+
}
2755+
returnexpression_tree_walker(node,finalize_agg_primnode,
2756+
(void*)context);
2757+
}
2758+
27132759
/*
27142760
* SS_make_initplan_from_plan - given a plan tree, make it an InitPlan
27152761
*

‎src/backend/utils/error/elog.c‎

Lines changed: 14 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1585,7 +1585,10 @@ FlushErrorState(void)
15851585
/*
15861586
* ThrowErrorData --- report an error described by an ErrorData structure
15871587
*
1588-
* This is intended to be used to re-report errors originally thrown by
1588+
* This is somewhat like ReThrowError, but it allows elevels besides ERROR,
1589+
* and the boolean flags such as output_to_server are computed via the
1590+
* default rules rather than being copied from the given ErrorData.
1591+
* This is primarily used to re-report errors originally reported by
15891592
* background worker processes and then propagated (with or without
15901593
* modification) to the backend responsible for them.
15911594
*/
@@ -1597,13 +1600,14 @@ ThrowErrorData(ErrorData *edata)
15971600

15981601
if (!errstart(edata->elevel,edata->filename,edata->lineno,
15991602
edata->funcname,NULL))
1600-
return;
1603+
return;/* error is not to be reported at all */
16011604

16021605
newedata=&errordata[errordata_stack_depth];
1603-
oldcontext=MemoryContextSwitchTo(edata->assoc_context);
1606+
recursion_depth++;
1607+
oldcontext=MemoryContextSwitchTo(newedata->assoc_context);
16041608

1605-
/* Copy the supplied fields to the error stack. */
1606-
if (edata->sqlerrcode>0)
1609+
/* Copy the supplied fields to the error stack entry. */
1610+
if (edata->sqlerrcode!=0)
16071611
newedata->sqlerrcode=edata->sqlerrcode;
16081612
if (edata->message)
16091613
newedata->message=pstrdup(edata->message);
@@ -1615,6 +1619,7 @@ ThrowErrorData(ErrorData *edata)
16151619
newedata->hint=pstrdup(edata->hint);
16161620
if (edata->context)
16171621
newedata->context=pstrdup(edata->context);
1622+
/* assume message_id is not available */
16181623
if (edata->schema_name)
16191624
newedata->schema_name=pstrdup(edata->schema_name);
16201625
if (edata->table_name)
@@ -1625,11 +1630,15 @@ ThrowErrorData(ErrorData *edata)
16251630
newedata->datatype_name=pstrdup(edata->datatype_name);
16261631
if (edata->constraint_name)
16271632
newedata->constraint_name=pstrdup(edata->constraint_name);
1633+
newedata->cursorpos=edata->cursorpos;
1634+
newedata->internalpos=edata->internalpos;
16281635
if (edata->internalquery)
16291636
newedata->internalquery=pstrdup(edata->internalquery);
16301637

16311638
MemoryContextSwitchTo(oldcontext);
1639+
recursion_depth--;
16321640

1641+
/* Process the error. */
16331642
errfinish(0);
16341643
}
16351644

‎src/include/nodes/plannodes.h‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -721,6 +721,8 @@ typedef struct Agg
721721
AttrNumber*grpColIdx;/* their indexes in the target list */
722722
Oid*grpOperators;/* equality operators to compare with */
723723
longnumGroups;/* estimated number of groups in input */
724+
Bitmapset*aggParams;/* IDs of Params used in Aggref inputs */
725+
/* Note: planner provides numGroups & aggParams only in AGG_HASHED case */
724726
List*groupingSets;/* grouping sets to use */
725727
List*chain;/* chained Agg/Sort nodes */
726728
}Agg;

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp