Dimitris Athanasiou b70ebdeb96
[7.x][ML] DF Analytics _explain API should skip object fields (#51115) (#51147)
Object fields cannot be used as features. At the moment _explain
API includes them and even worse it allows it does not error when
an object field is excluded. This creates the expectation to the
user that all children fields will also be excluded while it's not
the case.

This commit omits object fields from the _explain API and also
adds an error if an object field is included or excluded.

Backport of #51115
2020-01-17 14:02:59 +02:00
..