P. Larson, C. Clinciu, Campbell Fraser, E. Hanson, Mostafa Mokhtar, Michal Nowakiewicz, Vassilis Papadimos, Susan Price, Srikumar Rangarajan, Remus Rusanu, Mayukh Saubhasik
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引用次数: 67
摘要
SQL Server 2012引入了两项针对数据仓库工作负载的创新:列存储索引和批处理(矢量化)处理模式。它们一起极大地提高了典型数据仓库查询的性能，通常提高10倍，在某些情况下提高100倍甚至更多。在即将发布的版本中解决了初始版本的主要限制。列存储索引是可更新的，可以用作表的基础存储。批处理模式操作符的列表得到了扩展，现有操作符得到了改进，查询优化得到了增强。本文概述了SQL Server的列存储和批处理，特别是即将发布的版本中引入的增强功能。
SQL Server 2012 introduced two innovations targeted for data warehousing workloads: column store indexes and batch (vectorized) processing mode. Together they greatly improve performance of typical data warehouse queries, routinely by 10X and in some cases by a 100X or more. The main limitations of the initial version are addressed in the upcoming release. Column store indexes are updatable and can be used as the base storage for a table. The repertoire of batch mode operators has been expanded, existing operators have been improved, and query optimization has been enhanced. This paper gives an overview of SQL Server's column stores and batch processing, in particular the enhancements introduced in the upcoming release.
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