[GitHub] [spark] GuoPhilipse commented on a change in pull request #28951: [SPARK-32131][SQL] union and set operations have wrong exception infomation

[GitBox <gi...@apache.org>]

GuoPhilipse commented on a change in pull request #28951:
URL: https://github.com/apache/spark/pull/28951#discussion_r447448239



##########
File path: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala
##########
@@ -831,4 +831,77 @@ class AnalysisSuite extends AnalysisTest with Matchers {
       }
     }
   }
+
+  test("SPARK-32131 Fix wrong column index when we have more than two columns" +
+    " during union and set operations" ) {
+    val firstTable = LocalRelation(
+      AttributeReference("a", StringType)(),
+      AttributeReference("b", DoubleType)(),
+      AttributeReference("c", IntegerType)(),
+      AttributeReference("d", FloatType)())
+
+    val secondTable = LocalRelation(
+      AttributeReference("a", StringType)(),
+      AttributeReference("b", TimestampType)(),
+      AttributeReference("c", IntegerType)(),
+      AttributeReference("d", FloatType)())
+
+    val thirdTable = LocalRelation(
+      AttributeReference("a", StringType)(),
+      AttributeReference("b", DoubleType)(),
+      AttributeReference("c", TimestampType)(),
+      AttributeReference("d", FloatType)())
+
+    val fourthTable = LocalRelation(
+      AttributeReference("a", StringType)(),
+      AttributeReference("b", DoubleType)(),
+      AttributeReference("c", IntegerType)(),
+      AttributeReference("d", TimestampType)())
+
+    val a1 = firstTable.output(0)

Review comment:
       em,,,let me remove it




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