Re: Storing and fast retrieving of Email address

[Phil Hildebrand]

Is your storage engine innodb?

If so, then make sure the primary key is actually the clustered index (depends how it was created) - this should keep the fields in the same page of the index as the email.

If you have 5.1, this would be an ideal place for partitioning if you used an id (integer) for email. You could just create a hash or key partition on the email id column, and that should reduce your seek times if most of the queries are by email (emailid)

IE:

create table users
( emailid bigint not null primary key,
field 1 varchar....,
field 2 .....
) engine = innodb
partition by hash (emailid) partitions 100;

Could do the same partitioning for MyISAM if that's your engine