>>>>> "Thomas" == Thomas Bouton <bouton@stripped> writes:
Thomas> Hello everybody !
Thomas> I have a problem with a SQL request :
Thomas> select * from cde_client as cde ,
Thomas> ligne_cde_client as lcde ,
Thomas> article as a ,
Thomas> prix as p
Thomas> left join texte_libre as tl on (tl.num=num_cde_client and
Thomas> where num_cde_client=lcde.cde_client
Thomas> AND lcde.article=num_article
Thomas> and num_cde_client=721
Thomas> and p.tarif=1 and p.article=num_article
Thomas> order by limite
Thomas> which returns no results (was waiting for 10).
Thomas> a) I remove the "limite" field in the order by
Thomas> b) remove the first left join
Thomas> I get 10 results (expected behaviour) !
Thomas> I am using MySQL 3.22.22 for Win32 ( :( but I have to...)
Thomas> some more informations :
Thomas> The Explains (well one only as the
Thomas> table type possible_keys key key_len
Thomas> ref rows Extra
Thomas> cde const PRIMARY PRIMARY 4
Thomas> ??? 1
Thomas> tl ref type_num_2 type_num_2 5
Thomas> ???,cde.num_cde_client 1
Thomas> lcde ref article,cde_client cde_client 4
Thomas> ??? 10
Thomas> a eq_ref PRIMARY PRIMARY 4
Thomas> lcde.article 1
Thomas> p ref article,tarif article 4
Thomas> a.num_article 4 where used
Thomas> which seems correct to me.
Thomas> indexes have been rebuilt so no trouble from here ( I hope !)
Thomas> Can anybody explain this ?? (Of course I can send any further needed
Thomas> information ...)
Thomas> Thanx a lot !
If you could produce a full test and mail it to me, I can probably fix
this for you.
Can you by the way test if this works in MySQL 3.22.25 ?