diff options
Diffstat (limited to 'src/backend/utils/adt/pgstatfuncs.c')
| -rw-r--r-- | src/backend/utils/adt/pgstatfuncs.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/backend/utils/adt/pgstatfuncs.c b/src/backend/utils/adt/pgstatfuncs.c index 04a5a990025..46f98fd67f5 100644 --- a/src/backend/utils/adt/pgstatfuncs.c +++ b/src/backend/utils/adt/pgstatfuncs.c @@ -687,6 +687,44 @@ pg_stat_get_backend_userid(PG_FUNCTION_ARGS) PG_RETURN_OID(beentry->st_userid); } +Datum +pg_stat_get_backend_subxact(PG_FUNCTION_ARGS) +{ +#define PG_STAT_GET_SUBXACT_COLS 2 + TupleDesc tupdesc; + Datum values[PG_STAT_GET_SUBXACT_COLS]; + bool nulls[PG_STAT_GET_SUBXACT_COLS]; + int32 beid = PG_GETARG_INT32(0); + LocalPgBackendStatus *local_beentry; + + /* Initialise values and NULL flags arrays */ + MemSet(values, 0, sizeof(values)); + MemSet(nulls, 0, sizeof(nulls)); + + /* Initialise attributes information in the tuple descriptor */ + tupdesc = CreateTemplateTupleDesc(PG_STAT_GET_SUBXACT_COLS); + TupleDescInitEntry(tupdesc, (AttrNumber) 1, "subxact_count", + INT4OID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 2, "subxact_overflow", + BOOLOID, -1, 0); + + BlessTupleDesc(tupdesc); + + if ((local_beentry = pgstat_fetch_stat_local_beentry(beid)) != NULL) + { + /* Fill values and NULLs */ + values[0] = Int32GetDatum(local_beentry->backend_subxact_count); + values[1] = BoolGetDatum(local_beentry->backend_subxact_overflowed); + } + else + { + nulls[0] = true; + nulls[1] = true; + } + + /* Returns the record as Datum */ + PG_RETURN_DATUM(HeapTupleGetDatum(heap_form_tuple(tupdesc, values, nulls))); +} Datum pg_stat_get_backend_activity(PG_FUNCTION_ARGS) |