do not clear list of changed tables on one statement rollback (Bug #4213)

mysql-test/r/innodb_cache.result:
  test of rollback one statement in transaction
mysql-test/t/innodb_cache.test:
  test of rollback one statement in transaction
sql/handler.cc:
  clear changed tables list only for total roll back

mysql-test/r/innodb_cache.result

@@ -98,7 +98,7 @@ commit;
 show status like "Qcache_queries_in_cache";
 Variable_name	Value
 Qcache_queries_in_cache	1
-drop table if exists t1;
+drop table t3,t2,t1;
 CREATE TABLE t1 (id int(11) NOT NULL auto_increment, PRIMARY KEY  (id)) TYPE=InnoDB;
 select count(*) from t1;
 count(*)
@@ -108,3 +108,22 @@ select count(*) from t1;
 count(*)
 1
 drop table t1;
+set GLOBAL query_cache_size=1355776;
+CREATE TABLE t1 ( id int(10) NOT NULL auto_increment, a varchar(25) default NULL, PRIMARY KEY  (id), UNIQUE KEY a (a)) TYPE=innodb;
+CREATE TABLE t2 ( id int(10) NOT NULL auto_increment, b varchar(25) default NULL, PRIMARY KEY  (id), UNIQUE KEY b (b)) TYPE=innodb;
+CREATE TABLE t3 ( id int(10) NOT NULL auto_increment, t1_id int(10) NOT NULL default '0', t2_id int(10) NOT NULL default '0', state int(11) default NULL, PRIMARY KEY  (id), UNIQUE KEY t1_id (t1_id,t2_id), KEY t2_id (t2_id,t1_id), CONSTRAINT `t3_ibfk_1` FOREIGN KEY (`t1_id`) REFERENCES `t1` (`id`), CONSTRAINT `t3_ibfk_2` FOREIGN KEY (`t2_id`) REFERENCES `t2` (`id`)) TYPE=innodb;
+INSERT INTO t1 VALUES (1,'me');
+INSERT INTO t2 VALUES (1,'you');
+INSERT INTO t3 VALUES (2,1,1,2);
+delete from t3 where t1_id = 1 and t2_id = 1;
+select t1.* from t1, t2, t3 where t3.state & 1 = 0 and t3.t1_id = t1.id and t3.t2_id = t2.id and t1.id = 1 order by t1.a asc;
+id	a
+begin;
+insert into t3 VALUES ( NULL, 1, 1, 2 );
+insert into t3 VALUES ( NULL, 1, 1, 2 );
+Duplicate entry '1-1' for key 2
+commit;
+select t1.* from t1, t2, t3 where t3.state & 1 = 0 and t3.t1_id = t1.id and t3.t2_id = t2.id and t1.id = 1 order by t1.a asc;
+id	a
+1	me
+drop table t3,t2,t1;

mysql-test/t/innodb_cache.test

@@ -48,10 +48,31 @@ show status like "Qcache_queries_in_cache";
 show status like "Qcache_hits";
 commit;
 show status like "Qcache_queries_in_cache";
+drop table t3,t2,t1;
 
-drop table if exists t1;
 CREATE TABLE t1 (id int(11) NOT NULL auto_increment, PRIMARY KEY  (id)) TYPE=InnoDB;
 select count(*) from t1;
 insert into t1 (id) values (0);
 select count(*) from t1;
 drop table t1;
+
+#
+# one statement roll back inside transation
+#
+set GLOBAL query_cache_size=1355776;
+CREATE TABLE t1 ( id int(10) NOT NULL auto_increment, a varchar(25) default NULL, PRIMARY KEY  (id), UNIQUE KEY a (a)) TYPE=innodb;
+CREATE TABLE t2 ( id int(10) NOT NULL auto_increment, b varchar(25) default NULL, PRIMARY KEY  (id), UNIQUE KEY b (b)) TYPE=innodb;
+CREATE TABLE t3 ( id int(10) NOT NULL auto_increment, t1_id int(10) NOT NULL default '0', t2_id int(10) NOT NULL default '0', state int(11) default NULL, PRIMARY KEY  (id), UNIQUE KEY t1_id (t1_id,t2_id), KEY t2_id (t2_id,t1_id), CONSTRAINT `t3_ibfk_1` FOREIGN KEY (`t1_id`) REFERENCES `t1` (`id`), CONSTRAINT `t3_ibfk_2` FOREIGN KEY (`t2_id`) REFERENCES `t2` (`id`)) TYPE=innodb;
+INSERT INTO t1 VALUES (1,'me');
+INSERT INTO t2 VALUES (1,'you');
+INSERT INTO t3 VALUES (2,1,1,2);
+delete from t3 where t1_id = 1 and t2_id = 1;
+select t1.* from t1, t2, t3 where t3.state & 1 = 0 and t3.t1_id = t1.id and t3.t2_id = t2.id and t1.id = 1 order by t1.a asc;
+begin;
+insert into t3 VALUES ( NULL, 1, 1, 2 );
+-- error 1062
+insert into t3 VALUES ( NULL, 1, 1, 2 );
+commit;
+select t1.* from t1, t2, t3 where t3.state & 1 = 0 and t3.t1_id = t1.id and t3.t2_id = t2.id and t1.id = 1 order by t1.a asc;
+drop table t3,t2,t1;
+

sql/handler.cc

@@ -446,13 +446,12 @@ int ha_rollback_trans(THD *thd, THD_TRANS *trans)
       reinit_io_cache(&thd->transaction.trans_log,
                       WRITE_CACHE, (my_off_t) 0, 0, 1);
       thd->transaction.trans_log.end_of_file= max_binlog_cache_size;
+      if (operation_done)
+        thd->transaction.cleanup();
     }
     thd->variables.tx_isolation=thd->session_tx_isolation;
     if (operation_done)
-    {
       statistic_increment(ha_rollback_count,&LOCK_status);
-      thd->transaction.cleanup();
-    }
   }
 #endif /* USING_TRANSACTIONS */
   DBUG_RETURN(error);