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Tag: mysql sort

How MySQL does sorting with Order By

August 26, 2011Nilnandan JoshiMySQLLeave a comment

There are two filesort algorithms in MySQL for sorting and retriving select queries results. 1. Original Filesort Algorithm : This method uses only the ORDER BY columns. (prior to MySQL 4.1) 2. Modified Filesort Alforithm : This method uses ORDER BY columns and the columns which are used in query. (MySQL 4.1 and newer version)…

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