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Commit02490d4

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Export ExplainBeginOutput() and ExplainEndOutput() for auto_explain.
Without these functions, anyone outside of explain.c can't actually useExplainPrintPlan, because the ExplainState won't be initialized properly.The user-visible result of this was a crash when using auto_explain withthe JSON output format.Report by Euler Taveira de Oliveira. Analysis by Tom Lane. Patch by me.
1 parent6b45e3b commit02490d4

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3 files changed

+9
-7
lines changed

3 files changed

+9
-7
lines changed

‎contrib/auto_explain/auto_explain.c‎

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
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* Copyright (c) 2008-2009, PostgreSQL Global Development Group
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*
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* IDENTIFICATION
9-
* $PostgreSQL: pgsql/contrib/auto_explain/auto_explain.c,v 1.8 2009/12/11 01:33:35 adunstan Exp $
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* $PostgreSQL: pgsql/contrib/auto_explain/auto_explain.c,v 1.9 2009/12/12 00:35:33 rhaas Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -223,7 +223,9 @@ explain_ExecutorEnd(QueryDesc *queryDesc)
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es.verbose=auto_explain_log_verbose;
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es.format=auto_explain_log_format;
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ExplainBeginOutput(&es);
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ExplainPrintPlan(&es,queryDesc);
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ExplainEndOutput(&es);
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/* Remove last line break */
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if (es.str->len>0&&es.str->data[es.str->len-1]=='\n')

‎src/backend/commands/explain.c‎

Lines changed: 3 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
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* Portions Copyright (c) 1994-5, Regents of the University of California
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*
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* IDENTIFICATION
10-
* $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.194 2009/12/11 01:33:35 adunstan Exp $
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* $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.195 2009/12/12 00:35:33 rhaas Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -91,8 +91,6 @@ static void ExplainCloseGroup(const char *objtype, const char *labelname,
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boollabeled,ExplainState*es);
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staticvoidExplainDummyGroup(constchar*objtype,constchar*labelname,
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ExplainState*es);
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staticvoidExplainBeginOutput(ExplainState*es);
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staticvoidExplainEndOutput(ExplainState*es);
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staticvoidExplainXMLTag(constchar*tagname,intflags,ExplainState*es);
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staticvoidExplainJSONLineEnding(ExplainState*es);
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staticvoidExplainYAMLLineStarting(ExplainState*es);
@@ -1791,7 +1789,7 @@ ExplainDummyGroup(const char *objtype, const char *labelname, ExplainState *es)
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* This is just enough different from processing a subgroup that we need
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* a separate pair of subroutines.
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*/
1794-
staticvoid
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void
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ExplainBeginOutput(ExplainState*es)
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{
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switch (es->format)
@@ -1822,7 +1820,7 @@ ExplainBeginOutput(ExplainState *es)
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/*
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* Emit the end-of-output boilerplate.
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*/
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staticvoid
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void
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ExplainEndOutput(ExplainState*es)
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{
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switch (es->format)

‎src/include/commands/explain.h‎

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
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* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994-5, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/commands/explain.h,v 1.42 2009/12/11 01:33:35 adunstan Exp $
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* $PostgreSQL: pgsql/src/include/commands/explain.h,v 1.43 2009/12/12 00:35:34 rhaas Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -65,6 +65,8 @@ extern void ExplainOnePlan(PlannedStmt *plannedstmt, ExplainState *es,
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externvoidExplainPrintPlan(ExplainState*es,QueryDesc*queryDesc);
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externvoidExplainBeginOutput(ExplainState*es);
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externvoidExplainEndOutput(ExplainState*es);
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externvoidExplainSeparatePlans(ExplainState*es);
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#endif/* EXPLAIN_H */

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