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Extend EXPLAIN to support output in XML or JSON format.

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There are probably still some adjustments to be made in the details
of the output, but this gets the basic structure in place.

Robert Haas
This commit is contained in:
Tom Lane
2009-08-10 05:46:50 +00:00
parent 18894c401f
commit 9bd27b7c9e
12 changed files with 1153 additions and 364 deletions
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11
src/backend/commands/prepare.c
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@ -10,7 +10,7 @@
* Copyright (c) 2002-2009, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.98 2009/07/26 23:34:17 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.99 2009/08/10 05:46:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -685,9 +685,6 @@ ExplainExecuteQuery(ExecuteStmt *execstmt, ExplainState *es,
foreach(p, plan_list)
{
PlannedStmt *pstmt = (PlannedStmt *) lfirst(p);
bool is_last_query;
is_last_query = (lnext(p) == NULL);
if (IsA(pstmt, PlannedStmt))
{
@ -714,9 +711,9 @@ ExplainExecuteQuery(ExecuteStmt *execstmt, ExplainState *es,
/* No need for CommandCounterIncrement, as ExplainOnePlan did it */
/* put a blank line between plans */
if (!is_last_query)
appendStringInfoChar(es->str, '\n');
/* Separate plans with an appropriate separator */
if (lnext(p) != NULL)
ExplainSeparatePlans(es);
}
if (estate)