Re: Avoid possible dereference null pointer (src/backend/catalog/pg_depend.c)

Thanks a lot Michael.

On Sun, May 26, 2024 at 4:40 PM Michael Paquier <michael@paquier.xyz> wrote:

> On Fri, May 24, 2024 at 09:05:35AM -0300, Ranier Vilela wrote:
> > The function *get_attname* palloc the result name (pstrdup).
> > Isn't it necessary to free the memory here (pfree)?
>
> This is going to be freed with the current memory context, and all the
> callers of getIdentitySequence() are in query execution paths, so I
> don't see much the point.  A second thing was a missing check on the
> attnum returned by get_attnum() with InvalidAttrNumber.  I'd be
> tempted to introduce a missing_ok to this routine after looking at the
> callers in all the tree, as some of them want to fail still would not
> expect it, so that would reduce a bit the elog churn.  That's a story
> for a different day, though.
> --
> Michael
>


-- 
Best Wishes,
Ashutosh Bapat