Re: [sqlsmith] Failed assertion in parallel worker (ExecInitSubPlan)

On Sun, May 22, 2016 at 9:32 PM, Andreas Seltenreich <seltenreich@gmx.de> wrote:
>
> Amit Kapila writes:
>
> > avoid_restricted_clause_below_gather_v1.patch
> > prohibit_parallel_clause_below_rel_v1.patch
>
> I didn't observe any parallel worker related coredumps since applying
> these.  The same amount of testing done before applying them yielded
> about a dozend.
>

Thanks for verification.

> Dilip Kumar writes:
>
> > So now its clear that because of sub query pullup, we may get expression in
> > targetlist while creating single table path list. So we need to avoid
> > parallel plan if it contains expression.
>
> This sounds like a rather heavy restriction though…
>