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Re: How make indexes work with group by statement
Posted by: Jørgen Løland
Date: September 13, 2012 01:50AM

Hi Adnan

There is no technical reason that prevents MySQL from using indexes on a query with GROUP BY. This means that for your query, MySQL considers another way of accessing the table to be cheaper. This may or may not be a problem in your case.

I can't help you more without the following additional information:
* MySQL version
* SHOW CREATE table -- for involved tables
* EXPLAIN SELECT -- for the query you want help with

Hope this helps,
Jørgen Løland
Software Engineer, MySQL, Oracle

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Re: How make indexes work with group by statement
September 13, 2012 01:50AM

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