Why Use Enterprise Edition?

Glenn Berry explains that the Enterprise Edition of SQL Server is still important for enterprises:

If you are using Columnstore indexes, you get the following performance benefits automatically, when you use Enterprise Edition:

  • Aggregate Pushdown: This performance feature often gives a 2X-4X query performance gain by pushing qualifying aggregates to the SCAN node, which reduces the number of rows coming out of that iterator.

  • Index Build/Rebuild: Enterprise Edition can build/rebuild columnstore indexes with multiple processor cores, while Standard Edition only uses one processor core. This has a pretty significant effect on elapsed times for these operations, depending on your hardware.

  • Local Aggregates: Enterprise Edition can use local aggregations to filter the number of rows passing out of a SCAN node, reducing the amount of work that needs to be done by subsequent query nodes. You can confirm this by looking for the “ActualLocallyAggregatedRows” attribute in the XML of the execution plan for the query.

Glenn’s focus is around columnstore indexes and DBCC CHECKDB, but there are additional benefits as well, with the separator being improved performance rather than different feature surface areas.

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