Re: Small improvement to compactify_tuples

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Claudio Freire <klaussfreire(at)gmail(dot)com>, Юрий Соколов <funny(dot)falcon(at)gmail(dot)com>, Sokolov Yura <funny(dot)falcon(at)postgrespro(dot)ru>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, PostgreSQL-Dev <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Small improvement to compactify_tuples
Date: 2017-11-08 16:25:15
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Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> Just to throw a random idea out here, we currently have
> producing qsort_tuple() and qsort_ssup(). Maybe it
> could be modified to also produce a specialized qsort_itemids(). That
> might be noticeably faster that our general-purpose qsort() for the
> reasons mentioned in the comments in, viz:

+1 for somebody trying that (I'm not volunteering, though).

regards, tom lane

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