From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Pavan Deolasee <pavan.deolasee@gmail.com>
Cc: Jaime Casanova <jaime.casanova@2ndquadrant.com>
Cc: Haribabu Kommi <kommi.haribabu@gmail.com>
Cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Subject: Re: Patch: Write Amplification Reduction Method (WARM)
Date: Tue, 31 Jan 2017 14:10:01 -0300
Message-ID: <20170131171001.wg7bc4pimfu6in6t@alvherre.pgsql> (raw)
In-Reply-To: <CABOikdNU0qhKE-65x59qaj2kL-Jpq73Ri95ZODAvxxhsEBN9LQ@mail.gmail.com>
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Pavan Deolasee wrote:
> Two new APIs added.
>
> - CatalogInsertHeapAndIndex which does a simple_heap_insert followed by
> catalog updates
> - CatalogUpdateHeapAndIndex which does a simple_heap_update followed by
> catalog updates
>
> There are only a handful callers remain for simple_heap_insert/update after
> this patch. They are typically working with already opened indexes and
> hence I left them unchanged.
Hmm, I was thinking we would get rid of CatalogUpdateIndexes altogether.
Two of the callers are in the new routines (which I propose to rename to
CatalogTupleInsert and CatalogTupleUpdate); the only remaining one is in
InsertPgAttributeTuple. I propose that we inline the three lines into
all those places and just remove CatalogUpdateIndexes. Half the out-of-
core places that are using this function will be broken as soon as WARM
lands anyway. I see no reason to keep it. (I have already modified the
patch this way -- no need to resend).
Unless there are objections I will push this later this afternoon.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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Cc: alvherre@2ndquadrant.com, pavan.deolasee@gmail.com, jaime.casanova@2ndquadrant.com, kommi.haribabu@gmail.com, tomas.vondra@2ndquadrant.com
Subject: Re: Patch: Write Amplification Reduction Method (WARM)
In-Reply-To: <20170131171001.wg7bc4pimfu6in6t@alvherre.pgsql>
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