Home » Performance » MySQL » Sorted index pages - physically reorder on disk?
Sorted index pages - physically reorder on disk? [message #1584] Mon, 13 August 2007 15:53 Go to previous message
sean
Messages: 6
Registered: January 2007
Junior Member
This may apply to other engines but I'm primarily focused on myisam. When using optimize table or myisamchk --sort-index, the manual states "Sort index blocks. This speeds up 'read-next' in applications." During this process, does mysql physically sort the index pages on disk to improve sequential io?

Ex: a range lookup on a single column index... it would be great if this was sequential and only required one seek.

Thanks in advance.

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