Module datafusion_physical_plan::aggregates

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Aggregates functionalities

Structs§

  • Hash aggregate execution plan
  • Represents GROUP BY clause in the plan (including the more general GROUPING SET) In the case of a simple GROUP BY a, b clause, this will contain the expression [a, b] and a single group [false, false]. In the case of GROUP BY GROUPING SET/CUBE/ROLLUP the planner will expand the expression into multiple groups, using null expressions to align each group. For example, with a group by clause GROUP BY GROUPING SET ((a,b),(a),(b)) the planner should create a PhysicalGroupBy like

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