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Add support for an application_name parameter, which is displayed in

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pg_stat_activity and recorded in log entries.

Dave Page, reviewed by Andres Freund
This commit is contained in:
Tom Lane
2009-11-28 23:38:08 +00:00
parent cb98f61538
commit 8217cfbd99
16 changed files with 479 additions and 95 deletions
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16
src/backend/utils/adt/pgstatfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.54 2009/06/11 14:49:04 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.55 2009/11/28 23:38:07 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -416,7 +416,7 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
tupdesc = CreateTemplateTupleDesc(10, false);
tupdesc = CreateTemplateTupleDesc(11, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 1, "datid", OIDOID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "procpid", INT4OID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 3, "usesysid", OIDOID, -1, 0);
@ -427,6 +427,7 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
TupleDescInitEntry(tupdesc, (AttrNumber) 8, "backend_start", TIMESTAMPTZOID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 9, "client_addr", INETOID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 10, "client_port", INT4OID, -1, 0);
TupleDescInitEntry(tupdesc, (AttrNumber) 11, "application_name", TEXTOID, -1, 0);
funcctx->tuple_desc = BlessTupleDesc(tupdesc);
@ -478,8 +479,8 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
if (funcctx->call_cntr < funcctx->max_calls)
{
/* for each row */
Datum values[10];
bool nulls[10];
Datum values[11];
bool nulls[11];
HeapTuple tuple;
PgBackendStatus *beentry;
SockAddr zero_clientaddr;
@ -599,6 +600,12 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
nulls[9] = true;
}
}
/* application name */
if (beentry->st_appname)
values[10] = CStringGetTextDatum(beentry->st_appname);
else
nulls[10] = true;
}
else
{
@ -610,6 +617,7 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
nulls[7] = true;
nulls[8] = true;
nulls[9] = true;
nulls[10] = true;
}
tuple = heap_form_tuple(funcctx->tuple_desc, values, nulls);