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Home→Tags Optimization Log in

Tag Archives: Optimization

A heap of trouble

Sql2Go Consulting Posted on August 3, 2017 by meganAugust 3, 2017

Earlier this week I experimented, once again, with using temporary hash tables to speed up intermediate processing. Temp tables can be very useful for creating “optimizer fences” that serve to simplify queries to the point where the optimizer will consistently (more or less) come up with a good plan if not a great one. Temp heaps seem well suited to this purpose, when used simply as low-overhead FIFO structures.

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Tagged DB Engine, Development, Genealogy, Optimization, Performance, SQL Server, T-SQL

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