imply-cheddar commented on code in PR #14542:
URL: https://github.com/apache/druid/pull/14542#discussion_r1261934223


##########
processing/src/main/java/org/apache/druid/query/filter/DruidPredicateFactory.java:
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@@ -33,6 +38,11 @@ public interface DruidPredicateFactory
 
   DruidDoublePredicate makeDoublePredicate();
 
+  default Predicate<Object[]> makeArrayPredicate(@Nullable 
TypeSignature<ValueType> inputType)
+  {
+    throw new UOE("Predicate does not support ARRAY types");

Review Comment:
   Ah, `DruidException` has a `prependAndBuild()` method which takes the 
current DruidException and just prepends values to it.  The intent being that 
it can be used to add extra context from higher levels in the code.  
   
   So, another option for that is to throw a `DruidException` here, catch it in 
whatever code might expect to see it and do the `prependAndBuild()` to throw 
with the added message.



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