Module function 

Structs

FunctionContext

The function execution context

Traits

Function

Scalar function trait, modified from databend to adapt datafusion TODO(dennis): optimize function by it’s features such as monotonicity etc.

Functions

extract_args 🔒

Extract UDF arguments (as Arrow’s [ArrayRef]) from [ScalarFunctionArgs] directly.

find_function_context 🔒

Find the FunctionContext in the [ScalarFunctionArgs]. The FunctionContext was set previously in the DataFusion session context creation, and is passed all the way down to the args by DataFusion.

Type Aliases

FunctionRef