On Thu, Jun 15, 2017 at 10:38 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Robert Haas <robertmh...@gmail.com> writes:
>> On Thu, Jun 15, 2017 at 10:32 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
>>> It's fairly hard to read this other than as telling us that the worker was
>>> launched for the EXPLAIN (although really? why aren't we skipping that if
>> Uh, because ANALYZE was used?
> ... 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.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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