Module common_query::function

Functions

• make_scalar_function
  decorates a function to handle ScalarValues by converting them to arrays before calling the function and vice-versa after evaluation.
• to_df_return_type

Type Aliases

• AccumulatorCreatorFunction
  Create Accumulator with the data type of input columns.
• AccumulatorFunctionImpl
  Accumulator creator that will be used by DataFusion
• ReturnTypeFunction
  A function’s return type
• ScalarFunctionImplementation
  Scalar function
• StateTypeFunction
  This signature corresponds to which types an aggregator serializes its state, given its return datatype.