Sort is actually PlanState?

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Sort is actually PlanState?

From:	Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>
To:	PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject:	Sort is actually PlanState?
Date:	2010-11-02 00:55:47
Message-ID:	AANLkTimEhJ=ZR_HT1XciS8kGEsw17ViCGhZwGoEPtFfb@mail.gmail.com (view raw or flat)
Thread:
Lists:	pgsql-hackers

I wonder why SortState is a ScanState. As far as I know ScanState
means the node may need projection and/or qualification, or it scans
some relation, but Sort actually doesn't do such things. I also tried
to modify SortState as PlanState as in the attached patch and
regression test passed. Do I misunderstand ScanState?

Regards,

-- 
Hitoshi Harada

Attachment: sort-plan.20101102.patch
Description: application/octet-stream (4.6 KB)

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Re: Sort is actually PlanState? at 2010-11-02 01:06:22 from Tom Lane

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Next: From: Tom Lane Date: 2010-11-02 01:06:22

Subject: Re: Sort is actually PlanState?

Previous: From: Andres Freund Date: 2010-11-02 00:44:29

Subject: Re: [PATCH] Custom code int(32|64) => text conversions out of performance reasons

Next:	From: Tom Lane	Date: 2010-11-02 01:06:22
	Subject: Re: Sort is actually PlanState?
Previous:	From: Andres Freund	Date: 2010-11-02 00:44:29
	Subject: Re: [PATCH] Custom code int(32\|64) => text conversions out of performance reasons

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