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Re: B-Tree support function number 3 (strxfrm() optimization) - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: B-Tree support function number 3 (strxfrm() optimization)
Date
Msg-id CAM3SWZS38WBdPb9uS2Qx20RAVW15j_q6fOSY7DoM0vT3J_cfCQ@mail.gmail.com
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In response to Re: B-Tree support function number 3 (strxfrm() optimization)  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: B-Tree support function number 3 (strxfrm() optimization)  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Tue, Dec 2, 2014 at 2:21 PM, Robert Haas <robertmhaas@gmail.com> wrote:
> Right, and what I'm saying is that maybe the "applicability" flag
> shouldn't be stored in the SortSupport object, but passed down as an
> argument.

But then how does that information get to any given sortsupport
routine? That's the place that really needs to know if abbreviation is
useful. In general, they're only passed a SortSupport object. Are you
suggesting revising the signature required of SortSupport routines to
add that extra flag as an additional argument?

-- 
Peter Geoghegan

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