Re: [v9.3] writable foreign tables

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp>
Cc: Shigeru HANADA <shigeru(dot)hanada(at)gmail(dot)com>, PgHacker <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [v9.3] writable foreign tables
Date: 2012-08-28 14:58:25
Message-ID: 638.1346165905@sss.pgh.pa.us
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Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp> writes:
> It seems to me TargetEntry of the parse tree can inform us which column
> should be modified on UPDATE or INSERT. If it has just a Var element
> that reference original table as-is, it means here is no change.

Only if you're not going to support BEFORE triggers modifying the row...

regards, tom lane

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