Jaime Casanova wrote:
On Wed, Oct 7, 2009 at 4:08 PM, Marko Tiikkaja
<marko.tiikk...@cs.helsinki.fi> wrote:
1) WITH t AS
(UPDATE foo SET bar = bar+1 RETURNING *)
SELECT * FROM t LIMIT 1;
What's problematic here is that only 1 row is read from the CTE, meaning
also that only one row is updated which, at least how I see it, is not
what we want. The CTE should only store one row and return that after
it has completely processed the UPDATE statement.
i'm talking from my ignorance... but AFAIU this should process the
whole UPDATE and then form a WorkTable with the results...
what the select reads from that results is another thing...
Right. This is exactly what I'm trying to do, except I think we could
easily optimize this case and store only the first processed row inside
the CTE.
Regards,
Marko Tiikkaja
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