MySQL Order by ASC almost 20 times slower than DESC [closed]

Posted by Salman Akram on Stack Overflow See other posts from Stack Overflow or by Salman Akram
Published on 2010-06-14T23:04:07Z Indexed on 2010/06/14 23:12 UTC
Read the original article Hit count: 167

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mysql

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Performance

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order-by

Possible Duplicate:
MySQL ORDER BY DESC is fast but ASC is very slow

Order by DESC is super fast and Order by ASC takes almost 20 times more time.

How could it be caused and how could it be solved?

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