you are using a function-LOWER, which will not make use of the unique key
index on ksd.
Mysql does not support function based index, hence your query is doing a
FULL TABLE scan and taking more time.
On Tue, Jul 10, 2012 at 4:46 PM, Darek Maciera wrote:
> 2012/7/10 Ananda Kumar :
> > can u show th
can u show the explain plan for your query
On Tue, Jul 10, 2012 at 2:59 PM, Darek Maciera wrote:
> Hello,
>
> I have table:
>
> mysql> DESCRIBE books;
>
> |id |int(255) | NO | PRI |
> NULL | auto_increment |
> | idu
