Re: using custom scan nodes to prototype parallel sequential scan

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: using custom scan nodes to prototype parallel sequential scan
Date: 2014-11-14 00:15:25
Message-ID: CA+U5nMLymyzcK6D+iR1sbgSdC51FVdo9c2PctoEC+=7XPMsC_Q@mail.gmail.com
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On 12 November 2014 00:54, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:

> I'm going to aim for the simpler:
>
> Hash Aggregate
> -> Parallel Seq Scan
> Workers: 4
>
> Yeah, I know that won't perform as well as what you're proposing, but
> I'm fairly sure it's simpler.

Simple is best, so +1.

--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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