Module datafusion_expr::aggregate_function

Aggregate function module contains all built-in aggregate functions definitions

Structs

• AggregateFunctionIter
  An iterator over the variants of AggregateFunction

Enums

• AggregateFunction
  Enum of all built-in aggregate functions

Functions

• return_typeDeprecated
  Returns the datatype of the aggregate function. This is used to get the returned data type for aggregate expr.
• signatureDeprecated
  the signatures supported by the function fun.
• sum_type_of_avg
  Returns the internal sum datatype of the avg aggregate function.