Module functions 

Traits

UDFCoercionExt

Extension trait to unify common functionality between ScalarUDF, AggregateUDF and WindowUDF for use by signature coercion functions.

Functions

can_coerce_fromDeprecated

Return true if a value of type type_from can be coerced (losslessly converted) into a value of type_to

data_typesDeprecated

Performs type coercion for function arguments.

data_types_with_scalar_udfDeprecated

Performs type coercion for scalar function arguments.

fields_with_aggregate_udfDeprecated

Performs type coercion for aggregate function arguments.

fields_with_udf

Performs type coercion for UDF arguments.

fields_with_window_udfDeprecated

Performs type coercion for window function arguments.

value_fields_with_higher_order_udf

Performs type coercion for higher order function arguments.

value_fields_with_higher_order_udf_and_lambdas

Performs type coercion for higher order function arguments, including those defined by crate::HigherOrderUDFImpl::coerce_values_for_lambdas, if it returns Some(...) instead of the default None. Note that compared to value_fields_with_higher_order_udf, this function requires the ValueOrLambda::Lambda variant to contain the output field of the lambda.