Re: Rowcounts marked by create_foreignscan_path()

From: Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Rowcounts marked by create_foreignscan_path()
Date: 2014-02-18 03:25:01
Message-ID: 5302D28D.3070905@lab.ntt.co.jp
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(2014/02/18 12:03), Tom Lane wrote:
> Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp> writes:
>> Why does create_foreignscan_path() not set the rowcounts based on
>> ParamPathInfo when the path is a parameterized path?

> The calling FDW is supposed to do that; note the header comment.

Understood. However, ISTM postgresGetForeignPaths() doesn't work like
that. It uses the same rowcount for all paths of a same parameterization?

Thanks,

Best regards,
Etsuro Fujita

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