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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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7
src/include/utils/tuplesort.h
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@@ -13,7 +13,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/tuplesort.h,v 1.33 2009/06/11 14:49:13 momjian Exp $
* $PostgreSQL: pgsql/src/include/utils/tuplesort.h,v 1.34 2009/08/10 05:46:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -84,7 +84,10 @@ extern bool tuplesort_getdatum(Tuplesortstate *state, bool forward,
extern void tuplesort_end(Tuplesortstate *state);
extern char *tuplesort_explain(Tuplesortstate *state);
extern void tuplesort_get_stats(Tuplesortstate *state,
const char **sortMethod,
const char **spaceType,
long *spaceUsed);
extern int tuplesort_merge_order(long allowedMem);