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List:       postgresql-general
Subject:    Re: [HACKERS] EXPLAIN doesn't show sufficient info for wCTE cases
From:       Tom Lane <tgl () sss ! pgh ! pa ! us>
Date:       2011-02-28 19:54:28
Message-ID: 28752.1298922868 () sss ! pgh ! pa ! us
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David Fetter <david@fetter.org> writes:
> On Mon, Feb 28, 2011 at 11:44:06AM -0500, Robert Haas wrote:
>> I think it's good to include the table name, for sure.  I *think* I
>> agree that it isn't necessary to include the child names.

> Would this affect the use case of breaking up a too-long table into
> partitions?

> WITH f AS (
>     DELETE FROM ONLY foo
>     WHERE foo_ts >= '2011-01-01' AND foo_ts < '2011-02-01'
>     RETURNING *
> )
> INSERT INTO foo_201101
> SELECT * FROM f;

In that example, each ModifyTable node is constrained to a single
target table, so I'm not sure what your point is.

			regards, tom lane

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