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Commit145014f

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Make further use of new bitmapset code: executor's chgParam, extParam,
locParam lists can be converted to bitmapsets to speed updating. Also,replace 'locParam' with 'allParam', which contains all the paramIDsrelevant to the node (i.e., the union of extParam and locParam); thissaves a step during SetChangedParamList() without costing anythingelsewhere.
1 parentc15a4c2 commit145014f

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17 files changed

+268
-194
lines changed

17 files changed

+268
-194
lines changed

‎src/backend/executor/execAmi.c‎

Lines changed: 13 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
77
* Portions Copyright (c) 1994, Regents of the University of California
88
*
9-
*$Header: /cvsroot/pgsql/src/backend/executor/execAmi.c,v 1.68 2002/12/14 00:17:50 tgl Exp $
9+
*$Header: /cvsroot/pgsql/src/backend/executor/execAmi.c,v 1.69 2003/02/09 00:30:39 tgl Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -55,7 +55,7 @@ ExecReScan(PlanState *node, ExprContext *exprCtxt)
5555
InstrEndLoop(node->instrument);
5656

5757
/* If we have changed parameters, propagate that info */
58-
if (node->chgParam!=NIL)
58+
if (node->chgParam!=NULL)
5959
{
6060
List*lst;
6161

@@ -64,25 +64,25 @@ ExecReScan(PlanState *node, ExprContext *exprCtxt)
6464
SubPlanState*sstate= (SubPlanState*)lfirst(lst);
6565
PlanState*splan=sstate->planstate;
6666

67-
if (splan->plan->extParam!=NIL)/* don't care about child
68-
*locParam */
69-
SetChangedParamList(splan,node->chgParam);
70-
if (splan->chgParam!=NIL)
67+
if (splan->plan->extParam!=NULL)/* don't care about child
68+
*local Params */
69+
UpdateChangedParamSet(splan,node->chgParam);
70+
if (splan->chgParam!=NULL)
7171
ExecReScanSetParamPlan(sstate,node);
7272
}
7373
foreach(lst,node->subPlan)
7474
{
7575
SubPlanState*sstate= (SubPlanState*)lfirst(lst);
7676
PlanState*splan=sstate->planstate;
7777

78-
if (splan->plan->extParam!=NIL)
79-
SetChangedParamList(splan,node->chgParam);
78+
if (splan->plan->extParam!=NULL)
79+
UpdateChangedParamSet(splan,node->chgParam);
8080
}
8181
/* Well. Now set chgParam for left/right trees. */
8282
if (node->lefttree!=NULL)
83-
SetChangedParamList(node->lefttree,node->chgParam);
83+
UpdateChangedParamSet(node->lefttree,node->chgParam);
8484
if (node->righttree!=NULL)
85-
SetChangedParamList(node->righttree,node->chgParam);
85+
UpdateChangedParamSet(node->righttree,node->chgParam);
8686
}
8787

8888
switch (nodeTag(node))
@@ -165,10 +165,10 @@ ExecReScan(PlanState *node, ExprContext *exprCtxt)
165165
return;
166166
}
167167

168-
if (node->chgParam!=NIL)
168+
if (node->chgParam!=NULL)
169169
{
170-
freeList(node->chgParam);
171-
node->chgParam=NIL;
170+
bms_free(node->chgParam);
171+
node->chgParam=NULL;
172172
}
173173
}
174174

‎src/backend/executor/execProcnode.c‎

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -12,7 +12,7 @@
1212
*
1313
*
1414
* IDENTIFICATION
15-
* $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.34 2002/12/14 00:17:50 tgl Exp $
15+
* $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.35 2003/02/09 00:30:39 tgl Exp $
1616
*
1717
*-------------------------------------------------------------------------
1818
*/
@@ -282,7 +282,7 @@ ExecProcNode(PlanState *node)
282282
if (node==NULL)
283283
returnNULL;
284284

285-
if (node->chgParam!=NIL)/* something changed */
285+
if (node->chgParam!=NULL)/* something changed */
286286
ExecReScan(node,NULL);/* let ReScan handle this */
287287

288288
if (node->instrument)
@@ -504,10 +504,10 @@ ExecEndNode(PlanState *node)
504504
foreach(subp,node->subPlan)
505505
ExecEndSubPlan((SubPlanState*)lfirst(subp));
506506

507-
if (node->chgParam!=NIL)
507+
if (node->chgParam!=NULL)
508508
{
509-
freeList(node->chgParam);
510-
node->chgParam=NIL;
509+
bms_free(node->chgParam);
510+
node->chgParam=NULL;
511511
}
512512

513513
switch (nodeTag(node))

‎src/backend/executor/execUtils.c‎

Lines changed: 20 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $Header: /cvsroot/pgsql/src/backend/executor/execUtils.c,v 1.96 2003/01/23 05:10:39 tgl Exp $
11+
* $Header: /cvsroot/pgsql/src/backend/executor/execUtils.c,v 1.97 2003/02/09 00:30:39 tgl Exp $
1212
*
1313
*-------------------------------------------------------------------------
1414
*/
@@ -874,25 +874,28 @@ ExecInsertIndexTuples(TupleTableSlot *slot,
874874
}
875875
}
876876

877+
/*
878+
* UpdateChangedParamSet
879+
*Add changed parameters to a plan node's chgParam set
880+
*/
877881
void
878-
SetChangedParamList(PlanState*node,List*newchg)
882+
UpdateChangedParamSet(PlanState*node,Bitmapset*newchg)
879883
{
880-
List*nl;
881-
882-
foreach(nl,newchg)
883-
{
884-
intparamId=lfirsti(nl);
884+
Bitmapset*parmset;
885885

886-
/* if this node doesn't depend on a param ... */
887-
if (!intMember(paramId,node->plan->extParam)&&
888-
!intMember(paramId,node->plan->locParam))
889-
continue;
890-
/* if this param is already in list of changed ones ... */
891-
if (intMember(paramId,node->chgParam))
892-
continue;
893-
/* else - add this param to the list */
894-
node->chgParam=lappendi(node->chgParam,paramId);
895-
}
886+
/*
887+
* The plan node only depends on params listed in its allParam set.
888+
* Don't include anything else into its chgParam set.
889+
*/
890+
parmset=bms_intersect(node->plan->allParam,newchg);
891+
/*
892+
* Keep node->chgParam == NULL if there's not actually any members;
893+
* this allows the simplest possible tests in executor node files.
894+
*/
895+
if (!bms_is_empty(parmset))
896+
node->chgParam=bms_join(node->chgParam,parmset);
897+
else
898+
bms_free(parmset);
896899
}
897900

898901
/*

‎src/backend/executor/nodeAgg.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -45,7 +45,7 @@
4545
* Portions Copyright (c) 1994, Regents of the University of California
4646
*
4747
* IDENTIFICATION
48-
* $Header: /cvsroot/pgsql/src/backend/executor/nodeAgg.c,v 1.103 2003/02/04 00:48:23 tgl Exp $
48+
* $Header: /cvsroot/pgsql/src/backend/executor/nodeAgg.c,v 1.104 2003/02/09 00:30:39 tgl Exp $
4949
*
5050
*-------------------------------------------------------------------------
5151
*/
@@ -1405,7 +1405,7 @@ ExecReScanAgg(AggState *node, ExprContext *exprCtxt)
14051405
* if chgParam of subnode is not null then plan will be re-scanned by
14061406
* first ExecProcNode.
14071407
*/
1408-
if (((PlanState*)node)->lefttree->chgParam==NIL)
1408+
if (((PlanState*)node)->lefttree->chgParam==NULL)
14091409
ExecReScan(((PlanState*)node)->lefttree,exprCtxt);
14101410
}
14111411

‎src/backend/executor/nodeAppend.c‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $Header: /cvsroot/pgsql/src/backend/executor/nodeAppend.c,v 1.51 2002/12/05 15:50:33 tgl Exp $
11+
* $Header: /cvsroot/pgsql/src/backend/executor/nodeAppend.c,v 1.52 2003/02/09 00:30:39 tgl Exp $
1212
*
1313
*-------------------------------------------------------------------------
1414
*/
@@ -361,14 +361,14 @@ ExecReScanAppend(AppendState *node, ExprContext *exprCtxt)
361361
* ExecReScan doesn't know about my subplans, so I have to do
362362
* changed-parameter signaling myself.
363363
*/
364-
if (node->ps.chgParam!=NIL)
365-
SetChangedParamList(subnode,node->ps.chgParam);
364+
if (node->ps.chgParam!=NULL)
365+
UpdateChangedParamSet(subnode,node->ps.chgParam);
366366

367367
/*
368368
* if chgParam of subnode is not null then plan will be re-scanned
369369
* by first ExecProcNode.
370370
*/
371-
if (subnode->chgParam==NIL)
371+
if (subnode->chgParam==NULL)
372372
{
373373
/* make sure estate is correct for this subnode (needed??) */
374374
node->as_whichplan=i;

‎src/backend/executor/nodeSubplan.c‎

Lines changed: 42 additions & 37 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
* Portions Copyright (c) 1994, Regents of the University of California
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSubplan.c,v 1.43 2003/01/12 04:03:34 tgl Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSubplan.c,v 1.44 2003/02/09 00:30:39 tgl Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -80,7 +80,7 @@ ExecHashSubPlan(SubPlanState *node,
8080
* If first time through or we need to rescan the subplan, build
8181
* the hash table.
8282
*/
83-
if (node->hashtable==NULL||planstate->chgParam!=NIL)
83+
if (node->hashtable==NULL||planstate->chgParam!=NULL)
8484
buildSubPlanHash(node);
8585

8686
/*
@@ -218,22 +218,18 @@ ExecScanSubPlan(SubPlanState *node,
218218
* Set Params of this plan from parent plan correlation Vars
219219
*/
220220
pvar=node->args;
221-
if (subplan->parParam!=NIL)
221+
foreach(lst,subplan->parParam)
222222
{
223-
foreach(lst,subplan->parParam)
224-
{
225-
ParamExecData*prm;
226-
227-
prm=&(econtext->ecxt_param_exec_vals[lfirsti(lst)]);
228-
Assert(pvar!=NIL);
229-
prm->value=ExecEvalExprSwitchContext((ExprState*)lfirst(pvar),
230-
econtext,
231-
&(prm->isnull),
232-
NULL);
233-
pvar=lnext(pvar);
234-
}
235-
planstate->chgParam=nconc(planstate->chgParam,
236-
listCopy(subplan->parParam));
223+
intparamid=lfirsti(lst);
224+
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[paramid]);
225+
226+
Assert(pvar!=NIL);
227+
prm->value=ExecEvalExprSwitchContext((ExprState*)lfirst(pvar),
228+
econtext,
229+
&(prm->isnull),
230+
NULL);
231+
pvar=lnext(pvar);
232+
planstate->chgParam=bms_add_member(planstate->chgParam,paramid);
237233
}
238234
Assert(pvar==NIL);
239235

@@ -686,24 +682,24 @@ ExecInitSubPlan(SubPlanState *node, EState *estate)
686682

687683
/*
688684
* If this plan is un-correlated or undirect correlated one and want
689-
* to set params for parent plan then prepare parameters.
685+
* to set params for parent plan then mark parameters as needing
686+
* evaluation.
687+
*
688+
* Note that in the case of un-correlated subqueries we don't care
689+
* about setting parent->chgParam here: indices take care about
690+
* it, for others - it doesn't matter...
690691
*/
691692
if (subplan->setParam!=NIL)
692693
{
693694
List*lst;
694695

695696
foreach(lst,subplan->setParam)
696697
{
697-
ParamExecData*prm=&(estate->es_param_exec_vals[lfirsti(lst)]);
698+
intparamid=lfirsti(lst);
699+
ParamExecData*prm=&(estate->es_param_exec_vals[paramid]);
698700

699701
prm->execPlan=node;
700702
}
701-
702-
/*
703-
* Note that in the case of un-correlated subqueries we don't care
704-
* about setting parent->chgParam here: indices take care about
705-
* it, for others - it doesn't matter...
706-
*/
707703
}
708704

709705
/*
@@ -884,7 +880,9 @@ ExecSetParamPlan(SubPlanState *node, ExprContext *econtext)
884880

885881
if (subLinkType==EXISTS_SUBLINK)
886882
{
887-
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[lfirsti(subplan->setParam)]);
883+
/* There can be only one param... */
884+
intparamid=lfirsti(subplan->setParam);
885+
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[paramid]);
888886

889887
prm->execPlan=NULL;
890888
prm->value=BoolGetDatum(true);
@@ -914,9 +912,13 @@ ExecSetParamPlan(SubPlanState *node, ExprContext *econtext)
914912
node->curTuple=tup;
915913
MemoryContextSwitchTo(node->sub_estate->es_query_cxt);
916914

915+
/*
916+
* Now set all the setParam params from the columns of the tuple
917+
*/
917918
foreach(lst,subplan->setParam)
918919
{
919-
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[lfirsti(lst)]);
920+
intparamid=lfirsti(lst);
921+
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[paramid]);
920922

921923
prm->execPlan=NULL;
922924
prm->value=heap_getattr(tup,i,tdesc,&(prm->isnull));
@@ -928,7 +930,9 @@ ExecSetParamPlan(SubPlanState *node, ExprContext *econtext)
928930
{
929931
if (subLinkType==EXISTS_SUBLINK)
930932
{
931-
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[lfirsti(subplan->setParam)]);
933+
/* There can be only one param... */
934+
intparamid=lfirsti(subplan->setParam);
935+
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[paramid]);
932936

933937
prm->execPlan=NULL;
934938
prm->value=BoolGetDatum(false);
@@ -938,7 +942,8 @@ ExecSetParamPlan(SubPlanState *node, ExprContext *econtext)
938942
{
939943
foreach(lst,subplan->setParam)
940944
{
941-
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[lfirsti(lst)]);
945+
intparamid=lfirsti(lst);
946+
ParamExecData*prm=&(econtext->ecxt_param_exec_vals[paramid]);
942947

943948
prm->execPlan=NULL;
944949
prm->value= (Datum)0;
@@ -979,12 +984,12 @@ ExecReScanSetParamPlan(SubPlanState *node, PlanState *parent)
979984
EState*estate=parent->state;
980985
List*lst;
981986

982-
if (subplan->parParam!=NULL)
987+
if (subplan->parParam!=NIL)
983988
elog(ERROR,"ExecReScanSetParamPlan: direct correlated subquery unsupported, yet");
984-
if (subplan->setParam==NULL)
985-
elog(ERROR,"ExecReScanSetParamPlan: setParam list isNULL");
986-
if (planstate->plan->extParam==NULL)
987-
elog(ERROR,"ExecReScanSetParamPlan: extParamlist of plan isNULL");
989+
if (subplan->setParam==NIL)
990+
elog(ERROR,"ExecReScanSetParamPlan: setParam list isempty");
991+
if (bms_is_empty(planstate->plan->extParam))
992+
elog(ERROR,"ExecReScanSetParamPlan: extParamset of plan isempty");
988993

989994
/*
990995
* Don't actually re-scan: ExecSetParamPlan does it if needed.
@@ -995,10 +1000,10 @@ ExecReScanSetParamPlan(SubPlanState *node, PlanState *parent)
9951000
*/
9961001
foreach(lst,subplan->setParam)
9971002
{
998-
ParamExecData*prm=&(estate->es_param_exec_vals[lfirsti(lst)]);
1003+
intparamid=lfirsti(lst);
1004+
ParamExecData*prm=&(estate->es_param_exec_vals[paramid]);
9991005

10001006
prm->execPlan=node;
1007+
parent->chgParam=bms_add_member(parent->chgParam,paramid);
10011008
}
1002-
1003-
parent->chgParam=nconc(parent->chgParam,listCopy(subplan->setParam));
10041009
}

‎src/backend/executor/nodeSubqueryscan.c‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -12,7 +12,7 @@
1212
*
1313
*
1414
* IDENTIFICATION
15-
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSubqueryscan.c,v 1.17 2003/01/12 22:01:38 tgl Exp $
15+
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSubqueryscan.c,v 1.18 2003/02/09 00:30:39 tgl Exp $
1616
*
1717
*-------------------------------------------------------------------------
1818
*/
@@ -261,10 +261,10 @@ ExecSubqueryReScan(SubqueryScanState *node, ExprContext *exprCtxt)
261261
* ExecReScan doesn't know about my subplan, so I have to do
262262
* changed-parameter signaling myself. This is just as well,
263263
* because the subplan has its own memory context in which its
264-
* chgParamlists live.
264+
* chgParamstate lives.
265265
*/
266266
if (node->ss.ps.chgParam!=NULL)
267-
SetChangedParamList(node->subplan,node->ss.ps.chgParam);
267+
UpdateChangedParamSet(node->subplan,node->ss.ps.chgParam);
268268

269269
/*
270270
* if chgParam of subnode is not null then plan will be re-scanned by

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