| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Sean Chittenden <sean(at)chittenden(dot)org> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Should be easy enough to get this result (or is it possible?)... |
| Date: | 2002-05-16 04:45:00 |
| Message-ID: | 678.1021524300@sss.pgh.pa.us |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
Sean Chittenden <sean(at)chittenden(dot)org> writes:
> The upshot of things being that I want the 2nd query below (f.foo =3D
> 'b') to return foo_id and foo. Am I missing something?
I'm not real clear on what you're after, but the query results look
correct. The LEFT JOIN result (without any WHERE restriction) is
test=# SELECT f.foo_id, f.foo, b.bar_id, b.bar
test-# FROM foo AS f LEFT JOIN bar AS b on (f.foo_id = b.foo_id);
foo_id | foo | bar_id | bar
--------+-----+--------+-----
1 | a | 2 | y
1 | a | 1 | x
1 | a | 3 | z
2 | b | 4 | x
2 | b | 5 | z
3 | c | |
(6 rows)
and so the restricted outputs with the WHERE clauses look right.
What were you trying to do exactly?
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Lincoln Yeoh | 2002-05-16 05:01:43 | Re: Force a merge join? |
| Previous Message | Tom Lane | 2002-05-16 04:24:21 | Re: Force a merge join? |