Hello all,
This question refers to version 9.4 of Postgres. I have have a function
Datum do_something(PG_FUNCTION_ARGS)
{
...
if(error_occured) {
ereport(ERROR, (errmsg("some error occured")));
}
...
}
When I call do_something in a way to deliberately cause the error condition, the client connection (psql) is terminated, however for example when you say (or many other function calls that cause ereport to be called):
psql > SELECT ST_IsSimple('POINT(1, 1)');
I simply get the message "ERROR: parse error - invalid geometry" but the connection is not closed.
The subqueries also know that the inner query had terminated with an error somehow, without terminating the connection:
psql> select * from (select st_issimple('point(0, 0)')) as a;
ERROR: parse error - invalid geometry
I guess this could be done with surrounding the function call with PG_TRY/CATCH however these macros are not present in Postgis code.
Can you please suggest how to implement this functionality in my code?
Thanks,
Igor