clintropolis commented on PR #14096:
URL: https://github.com/apache/druid/pull/14096#issuecomment-1512102484

   >does it also fix the queries such as select * from table where 
complex_column is not null. Those don't work as well and they don't get planned 
into a query with expression filters.
   
   No, not quite, there is a bit more to fixing that because of things like 
https://github.com/apache/druid/blob/master/processing/src/main/java/org/apache/druid/query/filter/DruidPredicateFactory.java#L37,
 which are treating all inputs to predicates for complex and array types as 
null in the non-vectorized engine. I will be looking into fixing this in the 
near future.


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