Github user arina-ielchiieva commented on a diff in the pull request:
https://github.com/apache/drill/pull/1083#discussion_r160525926
--- Diff: exec/java-exec/src/test/java/org/apache/drill/TestUnionAll.java
---
@@ -1197,4 +1197,64 @@ public void testFieldWithDots() throws Exception {
.baselineValues("1", "2", "1", null, "a")
.go();
}
-}
\ No newline at end of file
+
+ @Test
+ public void testUnionAllRightEmptyDir() throws Exception {
--- End diff --
1. Does union (aka union distinct) also work fine?
2. Case when bot directories in union / union all are empty?
---
