IsOIDUserDefinedFunc returns true if an oid is a user-defined function oid.

MaybeFailOnUDFUsage returns an error if the given expression or any sub-expression used a UDF unless it's explicitly listed as an allowed use case.

NewBuilder returns a new FunctionDescriptorBuilder instance by delegating to NewBuilderWithMVCCTimestamp with an empty MVCC timestamp.

NewBuilderWithMVCCTimestamp creates a new FunctionDescriptorBuilder instance for building function descriptors.

NewMutableFunctionDescriptor is a mutable function descriptor constructor used only with in the legacy schema changer.

ToTreeRoutineParamClass converts the proto enum value to the corresponding tree.RoutineParamClass.

UserDefinedFunctionOIDToID converts a UDF OID into a descriptor ID.

Mutable represents a mutable function descriptor.

FunctionDescriptorBuilder is an extension of catalog.DescriptorBuilder for function descriptors.