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Include a pointer to the query's source text in QueryDesc structs. This is

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practically free given prior 8.4 changes in plancache and portal management,
and it makes it a lot easier for ExecutorStart/Run/End hooks to get at the
query text.  Extracted from Itagaki Takahiro's pg_stat_statements patch,
with minor editorialization.
This commit is contained in:
Tom Lane
2009-01-02 20:42:00 +00:00
parent ccd31eb861
commit bbeb0bbf6b
8 changed files with 45 additions and 18 deletions
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11
src/backend/commands/explain.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994-5, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.183 2009/01/01 17:23:37 momjian Exp $
* $PostgreSQL: pgsql/src/backend/commands/explain.c,v 1.184 2009/01/02 20:42:00 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -172,7 +172,7 @@ ExplainOneQuery(Query *query, ExplainStmt *stmt, const char *queryString,
plan = pg_plan_query(query, 0, params);
/* run it (if needed) and produce output */
ExplainOnePlan(plan, params, stmt, tstate);
ExplainOnePlan(plan, stmt, queryString, params, tstate);
}
}
@ -218,8 +218,9 @@ ExplainOneUtility(Node *utilityStmt, ExplainStmt *stmt,
* to call it.
*/
void
ExplainOnePlan(PlannedStmt *plannedstmt, ParamListInfo params,
ExplainStmt *stmt, TupOutputState *tstate)
ExplainOnePlan(PlannedStmt *plannedstmt, ExplainStmt *stmt,
const char *queryString, ParamListInfo params,
TupOutputState *tstate)
{
QueryDesc *queryDesc;
instr_time starttime;
@ -234,7 +235,7 @@ ExplainOnePlan(PlannedStmt *plannedstmt, ParamListInfo params,
PushUpdatedSnapshot(GetActiveSnapshot());
/* Create a QueryDesc requesting no output */
queryDesc = CreateQueryDesc(plannedstmt,
queryDesc = CreateQueryDesc(plannedstmt, queryString,
GetActiveSnapshot(), InvalidSnapshot,
None_Receiver, params,
stmt->analyze);