Operator of the Week - Spools, Eager Spool

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Published on 20 May 2010 Indexed on 2010/05/21 15:41 UTC
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For the fifth part of Fabiano's mission to describe the major Showplan Operators used by SQL Server's Query Optimiser, he introduces the spool operators and particularly the Eager Spool, explains blocking and non-blocking and then describes how the Halloween Problem is avoided.

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