Abbreviated keys for Datum tuplesort (was: Re: B-Tree support function number 3 (strxfrm() optimization))

From: Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>
To: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Cc: Peter Geoghegan <pg(at)heroku(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>
Subject: Abbreviated keys for Datum tuplesort (was: Re: B-Tree support function number 3 (strxfrm() optimization))
Date: 2015-01-23 21:13:03
Message-ID: 87iofxi66x.fsf@news-spur.riddles.org.uk
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[pruning the Cc: list and starting a new thread]

Here's the cleaned-up version of the patch to allow abbreviated keys
when sorting a single Datum. This also removes comments that suggest
that the caller of tuplesort_begin_datum should ever have to care
about the abbreviated key optimization.

I'll add this to the CF.

--
Andrew (irc:RhodiumToad)

Attachment Content-Type Size
datum_sort_abbrev.patch text/x-patch 8.6 KB

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