Re: Patch: Write Amplification Reduction Method (WARM)

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Jaime Casanova <jaime(dot)casanova(at)2ndquadrant(dot)com>
Cc: Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Patch: Write Amplification Reduction Method (WARM)
Date: 2016-12-26 15:53:18
Message-ID: 20161226155318.sakbalry4g4xbkaz@alvherre.pgsql
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Jaime Casanova wrote:

> * The isolation test for partial_index fails (attached the regression.diffs)

Hmm, I had a very similar (if not identical) failure with indirect
indexes; in my case it was a bug in RelationGetIndexAttrBitmap() -- I
was missing to have HOT considerate the columns in index predicate, that
is, the second pull_varattnos() call.

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

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