jon-wei commented on a change in pull request #7974: more sql support for
expression array functions
URL: https://github.com/apache/incubator-druid/pull/7974#discussion_r299630020
##########
File path: core/src/main/java/org/apache/druid/math/expr/Expr.java
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@@ -270,6 +270,21 @@ public BindingDetails analyzeInputs()
}
}
+abstract class NullNumericConstantExpr extends ConstantExpr
+{
+ @Override
+ public Object getLiteralValue()
+ {
+ return null;
+ }
+
+ @Override
+ public String toString()
+ {
+ return String.valueOf(null);
Review comment:
This would return the string "null", is that intended? If so, this could
just return "null"
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