From: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
---|---|
To: | Stas Kelvich <stas(dot)kelvich(at)gmail(dot)com> |
Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Cube extension kNN support |
Date: | 2015-04-03 12:23:51 |
Message-ID: | CAPpHfdvQuyELW-6NapnvUwhbbQF3877ai6De6gepm8GoBVfffA@mail.gmail.com |
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Lists: | pgsql-hackers |
On Thu, Mar 12, 2015 at 8:43 PM, Stas Kelvich <stas(dot)kelvich(at)gmail(dot)com>
wrote:
> Documentation along with style fix.
>
Since we change the interface of extension we have to change it version and
create a migration script.
E.g. you have to rename cube--1.0.sql to cube--1.1.sql and create
cube--1.0--1.1.sql to migrate the old version.
+ -- Alias for backword compatibility
CREATE FUNCTION cube_distance(cube, cube)
RETURNS float8
+ AS 'MODULE_PATHNAME', 'distance_euclid'
+ LANGUAGE C IMMUTABLE STRICT;
For backward compatibility it would be better to keep the old name of
cube_distance so that extension with old definition could work with new
binary.
------
With best regards,
Alexander Korotkov.
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