Re: partition pruning doesn't work with IS NULL clause in multikey range partition case

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>
Cc: Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, amul sul <sulamul(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>
Subject: Re: partition pruning doesn't work with IS NULL clause in multikey range partition case
Date: 2018-07-16 23:17:13
Message-ID: 20180716231713.x43jfnszttuokmul@alvherre.pgsql
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On 2018-Jul-16, Ashutosh Bapat wrote:

> > Hmm, let me reword this comment completely. How about the attached?

> That looks much better. However it took me a small while to understand
> that (1), (2) and (3) correspond to strategies.

You're right. Amended again and pushed. I also marked the open item
closed.

Thanks everyone

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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