// verify group1 users with DDL privileges can alter tables in db_1
client = context.getMetaStoreClient(USER1_1);
Table metaTable2 = client.getTable(dbName, tabName1);
metaTable2.getSd().setCols(
Lists.newArrayList(new FieldSchema("col2", "double", "")));
client.alter_table(dbName, tabName1, metaTable2);
Table metaTable3 = client.getTable(dbName, tabName1);
assertEquals(metaTable2, metaTable3);
// verify group1 users with DDL privileges can alter tables in db_1
client = context.getMetaStoreClient(USER2_1);