revert previous changes

Author: imback82

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

@@ -793,8 +793,6 @@ class Analyzer(
    * [[ResolveRelations]] still resolves v1 tables.
    */
   object ResolveTables extends Rule[LogicalPlan] {
-    import org.apache.spark.sql.connector.catalog.CatalogV2Implicits._
-
     def apply(plan: LogicalPlan): LogicalPlan = ResolveTempViews(plan).resolveOperatorsUp {
       case u: UnresolvedRelation =>
         lookupV2Relation(u.multipartIdentifier)
@@ -811,23 +809,12 @@ class Analyzer(
           .getOrElse(i)
 
       case alter @ AlterTable(_, _, u: UnresolvedV2Relation, _) =>
-        resolveV2Relation(u).map(rel => alter.copy(table = rel)).getOrElse(alter)
+        CatalogV2Util.loadRelation(u.catalog, u.tableName)
+          .map(rel => alter.copy(table = rel))
+          .getOrElse(alter)
 
       case u: UnresolvedV2Relation =>
-        resolveV2Relation(u).getOrElse(u)
-    }
-
-    private def resolveV2Relation(unresolved: UnresolvedV2Relation) : Option[NamedRelation] = {
-      val maybeTempView = unresolved.originalNameParts match {
-        case Seq(part) => v1SessionCatalog.lookupTempView(part)
-        case _ => None
-      }
-      if (maybeTempView.isDefined) {
-        unresolved.failAnalysis(
-          s"Invalid command: '${unresolved.originalNameParts.quoted}' is a view not a table.")
-      }
-
-      CatalogV2Util.loadRelation(unresolved.catalog, unresolved.tableName)
+        CatalogV2Util.loadRelation(u.catalog, u.tableName).getOrElse(u)
     }
 
     /**

sql/core/src/test/scala/org/apache/spark/sql/connector/TableResolutionSuite.scala

@@ -38,8 +38,8 @@ class TableResolutionSuite extends QueryTest with SharedSparkSession with Before
     val tbl = "t"
     val commands = Seq(
       s"DESCRIBE $tbl",
-      s"SHOW TBLPROPERTIES $tbl",
-      s"ALTER TABLE $tbl ADD COLUMN data string"
+      s"SHOW TBLPROPERTIES $tbl"
+      // s"ALTER TABLE $tbl ADD COLUMN data string"
     )
 
     withTempView(s"$tbl") {
@@ -52,7 +52,7 @@ class TableResolutionSuite extends QueryTest with SharedSparkSession with Before
           val ex = intercept[AnalysisException] {
             sql(command)
           }
-          assert(ex.getMessage.contains(s"Invalid command: '$tbl' is a view not a table."))
+          assert(ex.getMessage.contains(s"$tbl is a temp view not table."))
         }
       }
     }