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Re: Optimizing Substring Query
Posted by: Björn Steinbrink
Date: May 02, 2006 02:59PM

You don't need to concat then. You can split your search-string into two constants and use that to search on both fiels, using a compound index to speed up the process.

... WHERE name = SUBSTRING_INDEX(<SEARCH_TERM>, '/', 1) AND man = SUBSTRING_INDEX(<SEARCH_TERM>, '/', -1)

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