Re: Optional fields in Avro files.

Hi Dan, Thanks for bringing up this question. Such behavior was intentional since Avro files already have schema and Drill is able to use it during queries validation. It was done in the scope of DRILL-3810 . We have similar behavior for Hive

Optional fields in Avro files.

Similar to the "Check presence of field in json file" of last week, I was hoping to be able to fire drill off at avro files with evolving and variant schemas. (For the case where a field gets added over time, or a field is optional.) One of the suggestions for the json version was