HI,
I have the following table:
desc keywords_news;
+------------+----------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+----------+------+-----+---------+-------+
| id_keyword | int(11) | | PRI | 0 | |
| id_news | char(32) | | PRI | | |
+------------+----------+------+-----+---------+-------+
with primary key on the couple (id_keyword, id_news).
When I launch:
select distinct kn.id_keyword, k.keywords from news n, keywords_news kn, keywords k
where (kn.id_news=n.id_news)
and (n.id_news='news-965409279-1907') and
kn.id_keyword=k.id_keyword;
I obtain
+------------+--------------+
| id_keyword | keywords |
+------------+--------------+
| 13 | la |
| 107 | in |
| 194 | ragazzi |
| 195 | h |
| 196 | arrivo |
| 197 | pop-music! |
+------------+--------------+
and when I remove 'DISTINCT' from the query the result is:
Empty set (0.00 sec)
It seems a bug, I should obtain duplicated couples without DISTINCT, right?
Thanks
Nico
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