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subquery improvement

Open actiontech-bot opened this issue 7 years ago • 1 comments

Raised by: @yanhuqing666

  • support more subqueries
  • non-semi-join which cannot be converted to join
  • subquery in select

actiontech-bot avatar Aug 25 '17 09:08 actiontech-bot

By @yanhuqing666

Refer to Orthogonal_Optimization_of_Subqueries_and_Aggregation.pdf

actiontech-bot avatar Aug 25 '17 09:08 actiontech-bot