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Re: review: More frame options in window functions

From: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To: Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Erik Rijkers <er(at)xs4all(dot)nl>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: review: More frame options in window functions
Date: 2010-01-20 10:06:28
Message-ID: 162867791001200206x487b32d9k8b6428add5160283@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
2010/1/19 Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>:
> 2010/1/19 Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>:
>> Yeah, that's my point, too. The planner has to distinguish "four" from
>> sort pathkeys and to teach the executor the simple information which
>> column should be used to determine frame. I was bit wrong because some
>> of current executor code isn't like it, like using ordNumCols == 0 to
>> know whether partition equals to frame, though....
>
> And here's another version to fix this problem (I hope). Now the
> planner distinguish sort column from actual significant pathkeys. I
> tested it on both of 32bit and 64bit Linux.
>

I tested it, and reported problems are fixed

Thank you

Pavel

> Regards,
>
>
> --
> Hitoshi Harada
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