clintropolis commented on code in PR #13214:
URL: https://github.com/apache/druid/pull/13214#discussion_r992887728


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core/src/main/java/org/apache/druid/math/expr/vector/UnivariateFunctionVectorValueProcessor.java:
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@@ -74,5 +76,7 @@ public final ExprEvalVector<TOutput> 
evalVector(Expr.VectorInputBinding bindings
 
   abstract void processIndex(TInput input, int i);
 
+  abstract void processNull(int i);

Review Comment:
   it would have to return an object since we don't know if the value is 
`double` or `long`. Maybe the better thing to do is abstract out `long` and 
`double` versions of value processors and just have the same-ish code between 
them, though that's a bit more invasive of a change so i'm hesitant to make it 
right now. Would you be ok if i look into this as a follow-up PR?



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