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From:Jocelyn Fournier Date:December 19 2002 1:12pm
Subject:Re: really slow query results --- SOLVED
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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" <lists-mysql@stripped>
To: <mysql@stripped>
Sent: Thursday, December 19, 2002 12:40 PM
Subject: Re: really slow query results --- SOLVED


> In article <20021219041930.GA54615@stripped>,
> Dan Nelson <dnelson@stripped> 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]
>
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Thread
really slow query results --- SOLVEDJoseph Dietz19 Dec
  • Re: really slow query results --- SOLVEDDan Nelson19 Dec
  • Re: really slow query results --- SOLVEDHarald Fuchs19 Dec
  • Re: really slow query results --- SOLVEDJocelyn Fournier19 Dec