bring back column ordering in test assert

Author: sryza

sql/pipelines/src/test/scala/org/apache/spark/sql/pipelines/graph/MaterializeTablesSuite.scala

@@ -434,9 +434,8 @@ class MaterializeTablesSuite extends BaseCoreExecutionTest {
 
     val table2 = catalog.loadTable(identifier)
     assert(
-      table2.columns().toSet == CatalogV2Util
+      table2.columns() sameElements CatalogV2Util
         .structTypeToV2Columns(new StructType().add("x", BooleanType).add("y", IntegerType))
-        .toSet
     )
     assert(table2.partitioning().toSeq == Seq(Expressions.identity("x")))
 
@@ -457,9 +456,8 @@ class MaterializeTablesSuite extends BaseCoreExecutionTest {
 
     val table3 = catalog.loadTable(identifier)
     assert(
-      table3.columns().toSet == CatalogV2Util
+      table3.columns() sameElements  CatalogV2Util
         .structTypeToV2Columns(new StructType().add("x", BooleanType).add("y", IntegerType))
-        .toSet
     )
     assert(table3.partitioning().toSeq == Seq(Expressions.identity("x")))
   }