On 11/06/10 11:25, David Jarvis wrote:
Datum dateserial (PG_FUNCTION_ARGS) {
int32 p_year = PG_GETARG_INT32(0);
int32 p_month = PG_GETARG_INT32(1);
int32 p_day = PG_GETARG_INT32(2);
DateADT d = date2j (p_year, p_month, p_day) - POSTGRES_EPOCH_JDATE;
PG_RETURN_DATEADT(d);
}
Compiles without errors or warnings. The function is integrated as follows:
CREATE OR REPLACE FUNCTION dateserial(integer, integer, integer)
RETURNS text AS
'ymd.so', 'dateserial'
LANGUAGE 'c' IMMUTABLE STRICT
COST 1;
However, when I try to use it, the database segfaults:
select dateserial( 2007, 1, 3 )
Any ideas why?
The C function returns a DateADT, which is a typedef for int32, but the
CREATE FUNCTION statement claims that it returns 'text'.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
--
Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
