From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
Cc: | Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: intermittent failures in Cygwin from select_parallel tests |
Date: | 2017-06-15 14:50:18 |
Message-ID: | 32716.1497538218@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Thu, Jun 15, 2017 at 10:38 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> ... er, -ENOCAFFEINE. Nonetheless, there are no checks of
>> EXEC_FLAG_EXPLAIN_ONLY in any parallel-query code, so I think
>> a bet is being missed somewhere.
> ExecGather() is where workers get launched, and that ain't happening
> if EXEC_FLAG_EXPLAIN_ONLY is set, unless I am *very* confused about
> how this works.
Ah, you're right, it's done during first execution not during InitPlan.
Nevermind ...
regards, tom lane
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