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基于ORC元数据的Hive Join查询Reducer负载均衡方法 (ORC Metadata Based Reducer Load Balancing Method for Hive Join Queries).

Huajin WangJianhui LiZhihong ShenYuanchun Zhou
Published in: 计算机科学 (2018)
Keyphrases
  • load balancing
  • query processing
  • query optimization
  • data skew
  • metadata
  • join queries
  • databases
  • database systems
  • multi dimensional
  • cost model
  • statistical information
  • skewed data