Re: Totally different join-behaviour in mysql 4 and 5?

2006-02-01 Thread Jan Kirchhoff
Comma separated JOINS strikes again!!! [...] Here is where you will find this change documented in the manual: http://dev.mysql.com/doc/refman/5.0/en/upgrading-from-4-1.html I read that page over and over again... probably too late at night. thanks for that info. Thanks to Peter, too.

Re: Totally different join-behaviour in mysql 4 and 5?

2006-02-01 Thread Peter Brawley
Jan, >While my query has a cardinality of 23,124*1=23,124 on mysql4, it hasĀ  >6,412*34,341=220,194,492 on mysql5 - and takes forever and makes >me think everything hangs?! Yep, MySQL improved the SQL compatibility of its join syntax beginning with 5.0.12, see http://dev.mysql.com/doc/refma

Re: Totally different join-behaviour in mysql 4 and 5?

2006-02-01 Thread SGreen
Jan Kirchhoff <[EMAIL PROTECTED]> wrote on 02/01/2006 06:31:20 AM: > > As I already wrote I try do get a replication running from a > mysql-4.1.13 (32bit) master to a 5.0.18 (64bit) slave. It only runs > for a few minutes and then a query hangs. > I think I now found out why: > I modified a mul

Totally different join-behaviour in mysql 4 and 5?

2006-02-01 Thread Jan Kirchhoff
As I already wrote I try do get a replication running from a mysql-4.1.13 (32bit) master to a 5.0.18 (64bit) slave. It only runs for a few minutes and then a query hangs. I think I now found out why: I modified a multi-table-update that hung to a select. The same query on the absolutely ident