Hi, The performance problem on his query was due to the missing index on join columns. However I was assuming using table1 INNER JOIN table2 ON condition would have helped the optimiser to choose the tables on which it had to perform the join.
Regards, Jocelyn ----- Original Message ----- From: "Harald Fuchs" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, December 19, 2002 12:40 PM Subject: Re: really slow query results --- SOLVED > In article <[EMAIL PROTECTED]>, > Dan Nelson <[EMAIL PROTECTED]> writes: > > > INNER JOIN and WHERE do the same thing: > > > * `INNER JOIN' and `,' (comma) are semantically equivalent. Both do > > a full join between the tables used. Normally, you specify how the > > tables should be linked in the WHERE condition. > > That's what I always thought, but this must be wrong when Joseph > noticed a difference in performance. Any experts out there with > comments on that? > > > [Filter fodder: SQL query] > > --------------------------------------------------------------------- > Before posting, please check: > http://www.mysql.com/manual.php (the manual) > http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > > > > --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
