| From: | Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com>, Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz>, Jeff Davis <pgsql(at)j-davis(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Amit Langote <amitlangote09(at)gmail(dot)com>, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Fabrízio Mello <fabriziomello(at)gmail(dot)com>, Thom Brown <thom(at)linux(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Parallel Seq Scan |
| Date: | 2015-09-17 02:15:35 |
| Message-ID: | CAJrrPGfJDmzOVbLZoDho3KTAEZAn6Avoy+c0n9OeZH86qg1F7Q@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Sep 17, 2015 at 12:03 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> As mentioned previously [1], we have to do two different things to make
> this work, Robert seems to have taken care of one of those (basically
> second point in mail[1]) and still another one needs to be taken care
> which is to provide support of reading subplans in readfuncs.c and that
> will solve the problem you are seeing now.
Thanks for the information.
During my test, I saw a plan change from parallel seq scan to seq scan
for the first reported query.
So I thought that all scenarios are corrected as not to generate the
parallel seq scan.
Regards,
Hari Babu
Fujitsu Australia
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