Re: [HACKERS] Cube extension point support // GSoC'13

From: Stas Kelvich <stas(dot)kelvich(at)gmail(dot)com>
To: Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, pgsql-students(at)postgresql(dot)org, Alexander Korotkov <aekorotkov(at)gmail(dot)com>
Subject: Re: [HACKERS] Cube extension point support // GSoC'13
Date: 2013-09-24 13:07:52
Message-ID: EF7A0879-4E83-4AAE-997D-222D6761E1C6@gmail.com
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Hello

There is new version of patch. I have separated ordering operators to different patch (https://commitfest.postgresql.org/action/patch_view?id=1243) fixed formatting issues and implemented backward compatibility with old-style points in cube_is_point() and cube_out().

Also comparing output files I've discovered that this four files is combination of two types of different behavior:

1) SELECT '-1e-700'::cube AS cube;
can be (0) or (-0)

2) Amount of zeros in exponent of floating point, i.e. SELECT '1e27'::cube AS cube;
can be (1e+027) or (1e+27)

On my system (OSX) it is second option in both situations. I've also tested it on FreeBSD 9.0 and Ubuntu 12.04 with the same results. So is there some ideas how can I reproduce such results?

Stas.

Attachment Content-Type Size
points.diff application/octet-stream 35.1 KB
unknown_filename text/plain 1.6 KB

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