himanshug commented on a change in pull request #7588: multi-value string
column support for expressions
URL: https://github.com/apache/incubator-druid/pull/7588#discussion_r288263123
##########
File path:
processing/src/main/java/org/apache/druid/segment/virtual/ExpressionColumnValueSelector.java
##########
@@ -29,8 +29,8 @@
public class ExpressionColumnValueSelector implements
ColumnValueSelector<ExprEval>
{
- private final Expr.ObjectBinding bindings;
- private final Expr expression;
+ final Expr.ObjectBinding bindings;
+ final Expr expression;
Review comment:
```suggestion
protected final Expr expression;
```
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