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create table foo (id int(11) auto_increment, value varchar(255))
The table contains roughly 10,00,000 rows and select operations like select id, value from foo take around 2-3 secs to execute, how do I improve the speed here
select id, value from foo is going to return the whole table. The 2-3 seconds you mention could include the time it takes to transfer your results. This can often be much longer than it takes you database server to execute the actual query.