Re: Re: GiST optimizing memmoves in gistplacetopage for fixed-size updates [PoC]

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andrew Borodin <borodin(at)octonica(dot)com>
Cc: amborodin(at)acm(dot)org, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Anastasia Lubennikova <a(dot)lubennikova(at)postgrespro(dot)ru>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Oleg Bartunov <obartunov(at)gmail(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Sergey Mirvoda <sergey(at)mirvoda(dot)com>
Subject: Re: Re: GiST optimizing memmoves in gistplacetopage for fixed-size updates [PoC]
Date: 2016-09-09 23:04:45
Message-ID: 13932.1473462285@sss.pgh.pa.us
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I wrote:
> ... BTW, a quick grep for other calls of PageIndexTupleDelete suggests
> that SPGiST could make very good use of PageIndexTupleOverwrite, and
> there may be use for it in GIN too.

I've pushed this patch with some editorializing and some followup
work. The above remains as possible material for a future patch,
but I'm going to mark this commitfest entry as closed.

regards, tom lane

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