Revert [SPARK-8654] [SQL] Fix Analysis exception when using NULL IN

This reverts commit dcbd58a9 from #8983

Author: Michael Armbrust <michael@databricks.com>

Closes #9034 from marmbrus/revert8654.

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala

@@ -304,10 +304,7 @@ object HiveTypeCoercion {
   }
 
   /**
-   * Convert the value and in list expressions to the common operator type
-   * by looking at all the argument types and finding the closest one that
-   * all the arguments can be cast to. When no common operator type is found
-   * an Analysis Exception is raised.
+   * Convert all expressions in in() list to the left operator type
    */
   object InConversion extends Rule[LogicalPlan] {
     def apply(plan: LogicalPlan): LogicalPlan = plan resolveExpressions {
@@ -315,10 +312,7 @@ object HiveTypeCoercion {
       case e if !e.childrenResolved => e
 
       case i @ In(a, b) if b.exists(_.dataType != a.dataType) =>
-        findWiderCommonType(i.children.map(_.dataType)) match {
-          case Some(finalDataType) => i.withNewChildren(i.children.map(Cast(_, finalDataType)))
-          case None => i
-        }
+        i.makeCopy(Array(a, b.map(Cast(_, a.dataType))))
     }
   }
 

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala

@@ -135,25 +135,4 @@ class AnalysisSuite extends AnalysisTest {
     plan = testRelation.select(CreateStructUnsafe(Seq(a, (a + 1).as("a+1"))).as("col"))
     checkAnalysis(plan, plan)
   }
-
-  test("SPARK-8654: invalid CAST in NULL IN(...) expression") {
-    val plan = Project(Alias(In(Literal(null), Seq(Literal(1), Literal(2))), "a")() :: Nil,
-      LocalRelation()
-    )
-    assertAnalysisSuccess(plan)
-  }
-
-  test("SPARK-8654: different types in inlist but can be converted to a commmon type") {
-    val plan = Project(Alias(In(Literal(null), Seq(Literal(1), Literal(1.2345))), "a")() :: Nil,
-      LocalRelation()
-    )
-    assertAnalysisSuccess(plan)
-  }
-
-  test("SPARK-8654: check type compatibility error") {
-    val plan = Project(Alias(In(Literal(null), Seq(Literal(true), Literal(1))), "a")() :: Nil,
-      LocalRelation()
-    )
-    assertAnalysisError(plan, Seq("data type mismatch: Arguments must be same type"))
-  }
 }