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Re: [HACKERS] parallelize queries containing initplans - Mailing list pgsql-hackers

From Robert Haas
Subject Re: [HACKERS] parallelize queries containing initplans
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Msg-id CA+Tgmoa27ukh0OSjGQ2KztT_BQJMoZGcCjTeHowmiem8cpgsCg@mail.gmail.com
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In response to Re: [HACKERS] parallelize queries containing initplans  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: [HACKERS] parallelize queries containing initplans  (Amit Kapila <amit.kapila16@gmail.com>)
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On Tue, Nov 14, 2017 at 11:00 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Yeah, I'm sure it is.  I have a vague recollection that there might be
> existing regression test cases exercising such things, though I won't
> swear to that.  The "orderstest" bit in subselect.sql looks like it
> might be meant to do that...

Here's an updated patch that attempts to work around this problem using DSA.

It could use a test case that actually tickles the new logic in
ExecParallelReinitialize ... this is mostly just to show the concept.

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