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A Second Rule of Thumb for Choosing Column Order in Indexes

A couple of weeks ago, Baron Schwartz wrote an interesting post describing a rule of thumb he sometimes uses to choose the order of columns in an index. In a nutshell, he recommends putting highly …

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A rule of thumb for choosing column order in indexes

I wanted to share a little rule of thumb I sometimes use to decide which columns should come first in an index. This is not specific to MySQL, it’s generally applicable to any database server …

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