Github user arina-ielchiieva commented on a diff in the pull request:
https://github.com/apache/drill/pull/1232#discussion_r183763504
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/ScanBatch.java
---
@@ -409,7 +409,7 @@ public void clear() {
// Check if the field exists.
ValueVector v = fieldVectorMap.get(field.getName());
- if (v == null || v.getClass() != clazz) {
+ if (v == null || !v.getField().getType().equals(field.getType())) {
--- End diff --
Please add explanation comment.
---
