From: Philippe M. <mak...@fi...> - 2006-05-09 08:04:11
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SELECT myfield LIKE 'A%' -> use index SELECT myfield STARTING WITH 'A' -> use index SELECT myfield STARTING WITH 'A' OR myfield STARTING WITH 'B' -> use index SELECT myfield LIKE 'A%' OR myfield LIKE 'B%' -> does not use index I thought that for the optimizer, LIKE 'A%' is equivalent to STARTING WITH 'A', it seems that is not true when there is an OR -- Philippe Makowski |