Module udf 

UDF implementation interface.

To support a new language or runtime for UDF, implement the interface in this module.

See expr/impl/src/udf for the implementations.

Structs

BuildOptions

Options for building a UDF runtime.

CreateFunctionOutput

Output of creating a function.

CreateOptions

Options for creating a function.

UdfImplDescriptor

UDF implementation descriptor.

Enums

UdfKind

Statics

UDF_IMPLS

The global registry of UDF implementations.

Traits

UdfImpl

UDF implementation.

Functions

find_udf_impl

Find a UDF implementation by language.