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Gee, at the moment I don't know how to explain it better - sorry if my English is confusing. Look again and see what is known when the prepare method is called. Read tye's post and look at the link which gives exactly the parameter needed to cause more to happen at execute() time rather than using the pre-prepared not so good default strategy - when preparing the statement, the DB just does a lot better if it knows "like something starting with abc" rather than "like something". The default is to use the info and strategy decided upon when the prepare statement was executed, but that behavior can be over-ridden.

In reply to Re^3: same query, different execution, different performance by Marshall
in thread same query, different execution, different performance by punkish

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