Mechanism for ad hoc UDFs and `DummyEncoder` implementation
Created by: jassak
- Mechanism for ad-hoc UDFs 757
- Unification of python function based UDFs (
PyUdfGenerator
) and ad-hoc UDFs (AdhocUdfGenerator
) behind a common factory classUdfGenerator
757 - Implementation of
DummyEncoder
UDFs using ad hoc UDF mechanism and re-activate related skipped tests - Small improvements of python function based UDF generator
- Various fixes in standalone tests that broke silently due to
DummyEncoder
tests being skipped