On Sun, May 18, 2008 at 08:51:29PM +0900, Tatsuo Ishii wrote:
> WITH RECURSIVE patch V0.1
>
> Here are patches to implement WITH RECURSIVE clause. There are some
> limitiations and TODO items(see the "Current limitations" section
> below). Comments are welcome.
>
> 1. Credit
>
> These patches were developed by Yoshiyuki Asaba (y-asab@sraoss.co.jp)
> with some discussions with Tatsuo Ishii (ishii@sraoss.co.jp).
This is really great! Kudos to all who made this happen :)
I tried a bunch of different queries, and so far, only these two
haven't worked. Any ideas what I'm doing wrong here?
WITH RECURSIVE t(n) AS (
SELECT 1
UNION ALL
SELECT n+1
FROM t
WHERE n < 100
)
SELECT * FROM t;
ERROR: cannot extract attribute from empty tuple slot
WITH RECURSIVE t(n) AS (
VALUES (1)
UNION ALL
SELECT n+1
FROM t
WHERE n < 100
)
SELECT * FROM t;
ERROR: cannot extract attribute from empty tuple slot
Cheers,
David.
--
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