Re: [sqlsmith] Parallel worker crash on seqscan

Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Mon, Nov 21, 2016 at 11:43 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> so what we've got is a case where a parameter computed by the FunctionScan
>> (in the master) would need to be passed into the parallel workers at
>> runtime. Do we have code for that at all? If so where is it?

> No, that's not supposed to happen.

OK, that makes this a planner failure: we should not have allowed this
query to become parallelized.

> Maybe it's checking the quals but not recursing into the tlist?

It seems like maybe searching for individual Params is the wrong thing.
Why are we allowing it to generate a parameterized Gather path at all?
Given the lack of any way to transmit runtime param values to the worker,
I can't see how that would ever work.

regards, tom lane