nishantmonu51 commented on a change in pull request #5958: Part 2 of changes
for SQL Compatible Null Handling
URL: https://github.com/apache/incubator-druid/pull/5958#discussion_r204811346
##########
File path:
processing/src/main/java/io/druid/segment/virtual/SingleLongInputCachingExpressionColumnValueSelector.java
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@@ -150,6 +150,6 @@ private ExprEval eval(final long value)
@Override
public boolean isNull()
{
- return getObject().isNull();
+ return getObject().isNumericNull();
Review comment:
It is possible for an expression to have a non-null String value but it can
return null when parsed as a primitive long/float/double.
ExprEval.isNumericNull checks whether the parsed primitive value is null or
not.
Added comment to code.
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