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Range Queries on Custom Storage Engines
Posted by: Primal Wijesekera
Date: August 01, 2011 08:25PM

Hello All,

I am just trying to figure out how a range query such as below mentioned one would pass on the storage engine.

select * from usertable where age < 45 and age > 40;

The custom engine only called for index search of 40 not for 45. I was assuming it would call for both values.

It seems that internally mysql engine is doing the filtering for 45.

Is that correct ? or am I missing something here ?

Thank You very much in advance.

- primal

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