Re: why not parallel seq scan for slow functions

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: why not parallel seq scan for slow functions
Date: 2017-11-08 11:04:09
Message-ID: CA+TgmoYCzTUWLnctQ0MtJ_QRoFBaf=GHnwWX2FcLsSG1kQKubw@mail.gmail.com
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On Tue, Nov 7, 2017 at 9:41 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> This is required to prohibit generating gather path for top rel in
> case of inheritence (Append node) at this place (we want to generate
> it later when scan/join target is available).

OK, but why don't we want to generate it later when there isn't
inheritance involved?

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

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