Module datafusion_physical_expr_common::aggregate

Modules

• count_distinct
• groups_accumulator
  Utilities for implementing GroupsAccumulator
• merge_arrays
• stats
• tdigest
  An implementation of the TDigest sketch algorithm providing approximate quantile calculations.
• utils

Structs

• AggregateExprBuilder
  Builder for physical AggregateExpr
• AggregateFunctionExpr
  Physical aggregate expression of a UDAF.
• AggregatePhysicalExpressions
  Stores the physical expressions used inside the AggregateExpr.

Traits

• AggregateExpr
  An aggregate expression that:

Functions

• create_aggregate_expr
  Creates a physical expression of the UDAF, that includes all necessary type coercion. This function errors when args’ can’t be coerced to a valid argument type of the UDAF.
• create_aggregate_expr_with_dfschema