| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(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: | 2015-03-13 13:22:24 |
| Message-ID: | CA+TgmobVBFB7nsZdpX5iSwFzJF7CCfwHEdxb6gRLL3ZcDO=GyA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Mar 13, 2015 at 9:01 AM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> On Thu, Mar 12, 2015 at 3:44 AM, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>
> wrote:
>> In create_parallelscan_paths() function the funnel path is added once
>> the partial seq scan
>> path is generated. I feel the funnel path can be added once on top of
>> the total possible
>> parallel path in the entire query path.
>>
>> Is this the right patch to add such support also?
>
> This seems to be an optimization for parallel paths which can be
> done later as well.
+1. Let's keep it simple for now.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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