Github user ravipesala commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1656#discussion_r156842298
--- Diff:
integration/spark2/src/main/scala/org/apache/spark/sql/execution/CastExpressionOptimization.scala
---
@@ -122,6 +164,13 @@ object CastExpressionOptimization {
} else {
Some(CastExpr(c))
}
+ case d: DateType if t.sameType(StringType) =>
--- End diff --
Merge the case blocks as follows,
```
case TimestampType | DateType
```---
