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Re: Transaction Deadlock Fixed with Composite Index - but why?
Posted by: Peter Brawley
Date: April 17, 2019 10:35AM

> each value was individually indexed

But MySQL uses just one index at a time. The composite index seems to have refined look-ahead locks.

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Re: Transaction Deadlock Fixed with Composite Index - but why?
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April 17, 2019 10:35AM


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