Hi, Jeff Boes,
Jeff Boes wrote:
> select * from bar
> cross join f_foo(bar.b) as foo;
>
> Unfortunately, this last statement returns an error:
>
> NOTICE: adding missing FROM-clause entry for table "bar"
> ERROR: function expression in FROM may not refer to other relations of
> same query lev
Thankyou very much Yasir and Ross for your help and advice.
I have created a pl/pgsql version of Yasirs algorithm which
works perfectly, I am also looking into improving efficiency
by flaging leaf records. Here is my pl/pgsql solution in case
it helps anyone out:
CREATE OR REPLACE FUNCTION paren
On Sun, Apr 09, 2006 at 20:44:34 -0700,
[EMAIL PROTECTED] wrote:
> I have a slow sql:
> SELECT * FROM mytable WHERE id IN (1,3,5,7,3k here...);
> mytable is about 10k rows.
>
> if don't use the "IN" clause, it will cost 0,11 second, otherwise it
> will cost 2.x second
> I guess pg use linear
