Froid: How SQL Server 2019 Will Fix the Scalar Functions Problem
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Scalar functions and multi-statement table-valued functions are notorious performance killers. They hide in execution plans, their cost is under-estimated, the row estimates are way off, they cause queries to go single-threaded, I could go on and on. Microsoft is bringing a fix in SQL Server 2019, and thanks to a newly published paper, we know…
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