Re: BUG #15599: Segfault at MakeExpandedObjectReadOnlyInternal

19.01.2019 13:20, Andrew Gierth wrote:
>  PG> The PostgreSQL server crashes with the following query (excerpt
>  PG> from regression test, run it after `make check`):
>
> Not a bug.
>
>  PG> CREATE FUNCTION overpaid(emp)
>  PG>    RETURNS hobbies_r
>  PG>    AS '/src/postgres/src/test/regress/regress.so'
>  PG>    LANGUAGE C STRICT;
>
> "overpaid" in regress.so returns a boolean scalar, not a row of any
> kind. It is the responsibility of the person issuing CREATE FUNCTION for
> a C-language function to get the types right; if they are wrong, it can
> (as you observed) crash the server, which is why this action is
> restricted to database superusers.
Hello Andrew,

Thank you for the explanation. I will take this into account.

Best regards,
Alexander