[GitHub] xuchuanyin commented on a change in pull request #3099: [CARBONDATA-3268] Fix for query on Varchar Columns showing Null in Presto

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xuchuanyin commented on a change in pull request #3099: [CARBONDATA-3268] Fix for query on Varchar Columns showing Null in Presto
URL: https://github.com/apache/carbondata/pull/3099#discussion_r251231792
 
 

 ##########
 File path: integration/presto/src/test/scala/org/apache/carbondata/presto/integrationtest/PrestoTestNonTransactionalTableFiles.scala
 ##########
 @@ -281,17 +303,29 @@ class PrestoTestNonTransactionalTableFiles extends FunSuiteLike with BeforeAndAf
       "height" -> 0.0,
       "age" -> 0,
       "salary" -> 0.0,
-      "id" -> 0),
+      "id" -> 0,
+      "address" -> varcharString),
       Map("name" -> "robot1",
         "height" -> 0.5,
         "age" -> 1,
         "salary" -> 0.5,
-        "id" -> 1),
+        "id" -> 1,
+        "address" -> varcharString),
       Map("name" -> "robot2",
         "height" -> 1.0,
         "age" -> 2,
         "salary" -> 1.0,
-        "id" -> 2))
+        "id" -> 2,
+        "address" -> varcharString))
     assert(actualResult.toString() equals expectedResult.toString())
   }
+
+  test("Test for query on Varchar columns") {
+    buildTestDataSingleFile()
+    val actualRes: List[Map[String, Any]] = prestoServer.
+      executeQuery("select max(length(address)) from files")
+    val expectedRes: List[Map[String, Any]] = List(Map("_col0" -> 32001))
+    print(actualRes)
 
 Review comment:
   forget to remove?

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