Re: [HACKERS] Patch: Write Amplification Reduction Method (WARM)

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От Alvaro Herrera
Тема Re: [HACKERS] Patch: Write Amplification Reduction Method (WARM)
Дата
Msg-id 20170131221005.24lqwbdqg3dpvmeq@alvherre.pgsql
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Ответ на Re: [HACKERS] Patch: Write Amplification Reduction Method (WARM)  (Andres Freund <andres@anarazel.de>)
Ответы Re: [HACKERS] Patch: Write Amplification Reduction Method (WARM)  (Andres Freund <andres@anarazel.de>)
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Andres Freund wrote:
> On 2017-01-31 14:10:01 -0300, Alvaro Herrera wrote:

> > 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.
> 
> Hm, sorry for missing this earlier.  I think CatalogUpdateIndexes() is
> fairly widely used in extensions - it seems like a pretty harsh change
> to not leave some backward compatibility layer in place.

Yeah, I can put it back if there's pushback about the removal, but I
think it's going to break due to WARM anyway.

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



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