Re: Possible pointer var TupleDesc rettupdesc used not initialized (src/backend/optimizer/util/clauses.c) - Mailing list pgsql-hackers

On Mon, May 24, 2021 at 7:21 PM Ranier Vilela <ranier.vf@gmail.com> wrote:

Em seg., 24 de mai. de 2021 às 22:42, Mark Dilger <mark.dilger@enterprisedb.com> escreveu:

> On May 24, 2021, at 5:37 PM, Ranier Vilela <ranier.vf@gmail.com> wrote:
>
> Hi,
>
> Possible pointer TupleDesc rettupdesc used not initialized?
>
> if (!isNull) at line 4346 taking a true branch, the function check_sql_fn_retval at line 4448 can use rettupdesc uninitialized.

Care to submit a patch?

Hi Mark, sorry but not.

I examined the code and I can't say what the correct value is for rettupdesc.

Hi,

It seems the following call would fill up value for rettupdesc :

functypclass = get_expr_result_type((Node *) fexpr, NULL, &rettupdesc);