Finding relfilenode

From: Soroosh Sardari <soroosh(dot)sardari(at)gmail(dot)com>
To: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Finding relfilenode
Date: 2014-04-24 13:59:57
Message-ID: CAFUsPDaC5ZcPr5JpKRs1NFqLmb1Wn8zE4bLZO54rvSLvm42UzQ@mail.gmail.com
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Hi

In cost functions such as cost_seqscan, a RelOptinfo indicate a base
relation.
But there is no relfilenode in the RelOptinfo, So how could i find
relfilenode or reloid of the relation?

Thanks,
Soroosh Sardari

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