Re: [COMMITTERS] pgsql: Don't generate parallel paths for rels with parallel-restricted

From: Andreas Seltenreich <seltenreich(at)gmx(dot)de>
To: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, "pgsql-hackers\(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [COMMITTERS] pgsql: Don't generate parallel paths for rels with parallel-restricted
Date: 2016-06-15 06:44:17
Message-ID: 87vb1bne7y.fsf@credativ.de
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Amit Kapila writes:

> Right, so I have moved "Failed assertion in parallel worker
> (ExecInitSubPlan)" item to CLOSE_WAIT state as I don't think there is any
> known pending issue in that item. I have moved it to CLOSE_WAIT state
> because we have derived our queries to reproduce the problem based on
> original report[1]. If next run of sqlsmith doesn't show any problem in
> this context then we will move it to resolved.

It ran for about 100e6 queries by now without tripping on any parallel
worker related assertions. I tested with min_parallel_relation_size_v1.patch
applied and set to 64kB to have more exposure during testing.

regards,
Andreas

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