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Add a trace_sort option to help with measuring resource usage of external

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sort operations.  Per recent discussion.  Simon Riggs and Tom Lane.
This commit is contained in:
Tom Lane
2005-10-03 22:55:56 +00:00
parent 12992ab37a
commit 53e47cdd79
4 changed files with 121 additions and 7 deletions
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17
src/backend/utils/misc/guc.c
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@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.289 2005/09/24 22:54:39 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.290 2005/10/03 22:55:51 tgl Exp $
*
*--------------------------------------------------------------------
*/
@ -92,6 +92,9 @@ extern int CommitDelay;
extern int CommitSiblings;
extern char *default_tablespace;
extern bool fullPageWrites;
#ifdef TRACE_SORT
extern bool trace_sort;
#endif
static const char *assign_log_destination(const char *value,
bool doit, GucSource source);
@ -891,6 +894,18 @@ static struct config_bool ConfigureNamesBool[] =
false, NULL, NULL
},
#ifdef TRACE_SORT
{
{"trace_sort", PGC_USERSET, DEVELOPER_OPTIONS,
gettext_noop("Emit information about resource usage in sorting."),
NULL,
GUC_NOT_IN_SAMPLE
},
&trace_sort,
false, NULL, NULL
},
#endif
#ifdef WAL_DEBUG
{
{"wal_debug", PGC_SUSET, DEVELOPER_OPTIONS,