fix: do not pass undeclared feature view columns to ODFV UDFs by Vedant-Agarwal · Pull Request #6527 · feast-dev/feast

An OnDemandFeatureView's UDF was receiving every feature column in the online response, including features from feature views that the ODFV did not list in its sources. That allowed a UDF to silently depend on an undeclared source.

This filters the UDF input down to the ODFV's declared sources before the transform runs, so columns from undeclared feature views are hidden. Join keys, request data and the declared features are kept. substrait already restricts its inputs through its query plan, so it is left as is.

Fixes feast-dev#6158.

Signed-off-by: Vedant Agarwal <vedantagwl10@gmail.com>