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Commitd2458e3

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Expose a routine to print triggers during EXPLAIN ANALYZE
This is so that auto_explain can use it.Kyotaro HORIGUCHI
1 parentfe0c690 commitd2458e3

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2 files changed

+38
-23
lines changed

2 files changed

+38
-23
lines changed

‎src/backend/commands/explain.c

Lines changed: 37 additions & 23 deletions
Original file line numberDiff line numberDiff line change
@@ -486,29 +486,7 @@ ExplainOnePlan(PlannedStmt *plannedstmt, IntoClause *into, ExplainState *es,
486486

487487
/* Print info about runtime of triggers */
488488
if (es->analyze)
489-
{
490-
ResultRelInfo*rInfo;
491-
boolshow_relname;
492-
intnumrels=queryDesc->estate->es_num_result_relations;
493-
List*targrels=queryDesc->estate->es_trig_target_relations;
494-
intnr;
495-
ListCell*l;
496-
497-
ExplainOpenGroup("Triggers","Triggers", false,es);
498-
499-
show_relname= (numrels>1||targrels!=NIL);
500-
rInfo=queryDesc->estate->es_result_relations;
501-
for (nr=0;nr<numrels;rInfo++,nr++)
502-
report_triggers(rInfo,show_relname,es);
503-
504-
foreach(l,targrels)
505-
{
506-
rInfo= (ResultRelInfo*)lfirst(l);
507-
report_triggers(rInfo,show_relname,es);
508-
}
509-
510-
ExplainCloseGroup("Triggers","Triggers", false,es);
511-
}
489+
ExplainPrintTriggers(es,queryDesc);
512490

513491
/*
514492
* Close down the query and free resources. Include time for this in the
@@ -564,6 +542,42 @@ ExplainPrintPlan(ExplainState *es, QueryDesc *queryDesc)
564542
ExplainNode(queryDesc->planstate,NIL,NULL,NULL,es);
565543
}
566544

545+
/*
546+
* ExplainPrintTriggers -
547+
548+
* convert a QueryDesc's trigger statistics to text and append it to
549+
* es->str
550+
*
551+
* The caller should have set up the options fields of *es, as well as
552+
* initializing the output buffer es->str.Other fields in *es are
553+
* initialized here.
554+
*/
555+
void
556+
ExplainPrintTriggers(ExplainState*es,QueryDesc*queryDesc)
557+
{
558+
ResultRelInfo*rInfo;
559+
boolshow_relname;
560+
intnumrels=queryDesc->estate->es_num_result_relations;
561+
List*targrels=queryDesc->estate->es_trig_target_relations;
562+
intnr;
563+
ListCell*l;
564+
565+
ExplainOpenGroup("Triggers","Triggers", false,es);
566+
567+
show_relname= (numrels>1||targrels!=NIL);
568+
rInfo=queryDesc->estate->es_result_relations;
569+
for (nr=0;nr<numrels;rInfo++,nr++)
570+
report_triggers(rInfo,show_relname,es);
571+
572+
foreach(l,targrels)
573+
{
574+
rInfo= (ResultRelInfo*)lfirst(l);
575+
report_triggers(rInfo,show_relname,es);
576+
}
577+
578+
ExplainCloseGroup("Triggers","Triggers", false,es);
579+
}
580+
567581
/*
568582
* ExplainQueryText -
569583
* add a "Query Text" node that contains the actual text of the query

‎src/include/commands/explain.h

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -71,6 +71,7 @@ extern void ExplainOnePlan(PlannedStmt *plannedstmt, IntoClause *into,
7171
constchar*queryString,ParamListInfoparams);
7272

7373
externvoidExplainPrintPlan(ExplainState*es,QueryDesc*queryDesc);
74+
externvoidExplainPrintTriggers(ExplainState*es,QueryDesc*queryDesc);
7475

7576
externvoidExplainQueryText(ExplainState*es,QueryDesc*queryDesc);
7677

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