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Clean up the rather historically encumbered interface to now() and

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current time: provide a GetCurrentTimestamp() function that returns
current time in the form of a TimestampTz, instead of separate time_t
and microseconds fields.  This is what all the callers really want
anyway, and it eliminates low-level dependencies on AbsoluteTime,
which is a deprecated datatype that will have to disappear eventually.
This commit is contained in:
Tom Lane
2005-06-29 22:51:57 +00:00
parent c33d575899
commit b5f7cff84f
19 changed files with 135 additions and 213 deletions
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32
src/backend/utils/adt/pgstatfuncs.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.23 2005/06/28 05:09:00 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.24 2005/06/29 22:51:56 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -341,13 +341,9 @@ pg_stat_get_backend_activity(PG_FUNCTION_ARGS)
Datum
pg_stat_get_backend_activity_start(PG_FUNCTION_ARGS)
{
PgStat_StatBeEntry *beentry;
int32 beid;
AbsoluteTime sec;
int usec;
int32 beid = PG_GETARG_INT32(0);
TimestampTz result;
beid = PG_GETARG_INT32(0);
PgStat_StatBeEntry *beentry;
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
PG_RETURN_NULL();
@ -355,31 +351,24 @@ pg_stat_get_backend_activity_start(PG_FUNCTION_ARGS)
if (!superuser() && beentry->userid != GetUserId())
PG_RETURN_NULL();
sec = beentry->activity_start_sec;
usec = beentry->activity_start_usec;
result = beentry->activity_start_timestamp;
/*
* No time recorded for start of current query -- this is the case if
* the user hasn't enabled query-level stats collection.
*/
if (sec == 0 && usec == 0)
if (result == 0)
PG_RETURN_NULL();
result = AbsoluteTimeUsecToTimestampTz(sec, usec);
PG_RETURN_TIMESTAMPTZ(result);
}
Datum
pg_stat_get_backend_start(PG_FUNCTION_ARGS)
{
PgStat_StatBeEntry *beentry;
int32 beid;
AbsoluteTime sec;
int usec;
int32 beid = PG_GETARG_INT32(0);
TimestampTz result;
beid = PG_GETARG_INT32(0);
PgStat_StatBeEntry *beentry;
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
PG_RETURN_NULL();
@ -387,14 +376,11 @@ pg_stat_get_backend_start(PG_FUNCTION_ARGS)
if (!superuser() && beentry->userid != GetUserId())
PG_RETURN_NULL();
sec = beentry->start_sec;
usec = beentry->start_usec;
result = beentry->start_timestamp;
if (sec == 0 && usec == 0)
if (result == 0) /* probably can't happen? */
PG_RETURN_NULL();
result = AbsoluteTimeUsecToTimestampTz(sec, usec);
PG_RETURN_TIMESTAMPTZ(result);
}