diff options
Diffstat (limited to 'src/backend')
| -rw-r--r-- | src/backend/utils/adt/pseudotypes.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/backend/utils/adt/pseudotypes.c b/src/backend/utils/adt/pseudotypes.c index d9329f83428..ddb1bd2b71c 100644 --- a/src/backend/utils/adt/pseudotypes.c +++ b/src/backend/utils/adt/pseudotypes.c @@ -212,6 +212,34 @@ void_out(PG_FUNCTION_ARGS) PG_RETURN_CSTRING(pstrdup("")); } +/* + * void_recv - binary input routine for pseudo-type VOID. + * + * Note that since we consume no bytes, an attempt to send anything but + * an empty string will result in an "invalid message format" error. + */ +Datum +void_recv(PG_FUNCTION_ARGS) +{ + PG_RETURN_VOID(); +} + +/* + * void_send - binary output routine for pseudo-type VOID. + * + * We allow this so that "SELECT function_returning_void(...)" works + * even when binary output is requested. + */ +Datum +void_send(PG_FUNCTION_ARGS) +{ + StringInfoData buf; + + /* send an empty string */ + pq_begintypsend(&buf); + PG_RETURN_BYTEA_P(pq_endtypsend(&buf)); +} + /* * trigger_in - input routine for pseudo-type TRIGGER. |