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copied!<p>Is there anyway to get better performance out of this.</p> <pre><code>SELECT fdyofmth, SUM(total_restored) AS total_restored FROM sum_restored WHERE fdyofmth BETWEEN '2010-11-01' AND '2011-11-01' GROUP BY fdyofmth ORDER BY fdyofmth DESC </code></pre> <p>The result takes 3 secs.</p> <pre><code>+------------+----------------+ | fdyofmth | total_restored | +------------+----------------+ | 2011-11-01 | 39793 | | 2011-10-01 | 52367 | | 2011-09-01 | 52141 | | 2011-08-01 | 56515 | | 2011-07-01 | 54668 | | 2011-06-01 | 54874 | | 2011-05-01 | 60025 | | 2011-04-01 | 60005 | | 2011-03-01 | 63856 | | 2011-02-01 | 64472 | | 2011-01-01 | 58943 | | 2010-12-01 | 57005 | | 2010-11-01 | 55731 | +------------+----------------+ </code></pre> <p>EXPLAIN result -</p> <pre><code>+----+-------------+--------------+------+---------------+------+---------+------+--------+----------------------------------------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+--------------+------+---------------+------+---------+------+--------+----------------------------------------------+ | 1 | SIMPLE | sum_restored | ALL | NULL | NULL | NULL | NULL | 752660 | Using where; Using temporary; Using filesort | +----+-------------+--------------+------+---------------+------+---------+------+--------+----------------------------------------------+ 1 row in set </code></pre> <p>I have tried putting a KEY of fdyofmth which actually made it twice as slow.</p> <p>Any help would be much appreciated.</p> <p>Thank you.</p>

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