fixed test to clean tables

Author: chernser

client-v2/src/test/java/com/clickhouse/client/query/QueryTests.java

@@ -2228,8 +2228,8 @@ public void testDuplicateColumnNames() throws Exception {
         }
 
         {
-            client.execute("DROP TABLE IF EXISTS test_duplicate_column_names_1").get().close();
-            client.execute("DROP TABLE IF EXISTS test_duplicate_column_names_2").get().close();
+            client.execute("DROP TABLE IF EXISTS test_duplicate_column_names1").get().close();
+            client.execute("DROP TABLE IF EXISTS test_duplicate_column_names2").get().close();
             client.execute("CREATE TABLE test_duplicate_column_names1 (name String ) ENGINE = MergeTree ORDER BY ()").get().close();
             client.execute("INSERT INTO test_duplicate_column_names1 VALUES ('some name')").get().close();
             client.execute("CREATE TABLE test_duplicate_column_names2 (name String ) ENGINE = MergeTree ORDER BY ()").get().close();

jdbc-v2/src/test/java/com/clickhouse/jdbc/StatementTest.java

@@ -1203,8 +1203,8 @@ public void testResponseWithDuplicateColumns() throws Exception {
             }
 
             {
-                stmt.execute("DROP TABLE IF EXISTS test_jdbc_duplicate_column_names_1");
-                stmt.execute("DROP TABLE IF EXISTS test_jdbc_duplicate_column_names_2");
+                stmt.execute("DROP TABLE IF EXISTS test_jdbc_duplicate_column_names1");
+                stmt.execute("DROP TABLE IF EXISTS test_jdbc_duplicate_column_names2");
                 stmt.execute("CREATE TABLE test_jdbc_duplicate_column_names1 (name String ) ENGINE = MergeTree ORDER BY ()");
                 stmt.execute("INSERT INTO test_jdbc_duplicate_column_names1 VALUES ('some name')");
                 stmt.execute("CREATE TABLE test_jdbc_duplicate_column_names2 (name String ) ENGINE = MergeTree ORDER BY ()");