-- MySQL dump 10.13  Distrib 5.1.52, for redhat-linux-gnu (x86_64)
--
-- Host: 127.0.01    Database: ss
-- ------------------------------------------------------
-- Server version	5.1.52

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;

--
-- Table structure for table `t1`
--

DROP TABLE IF EXISTS `t1`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `t1` (
  `f1` int(11) DEFAULT NULL,
  `f2` int(11) DEFAULT NULL,
  KEY `t1f2f1` (`f2`,`f1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `t1`
--

LOCK TABLES `t1` WRITE;
/*!40000 ALTER TABLE `t1` DISABLE KEYS */;
INSERT INTO `t1` VALUES (1,1),(2,1),(3,1),(4,2),(2,3),(10,10),(0,1),(1,10);
/*!40000 ALTER TABLE `t1` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `t2`
--

DROP TABLE IF EXISTS `t2`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `t2` (
  `f2` int(11) DEFAULT NULL,
  `f3` varchar(10) DEFAULT NULL,
  KEY `t2f3` (`f3`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `t2`
--

LOCK TABLES `t2` WRITE;
/*!40000 ALTER TABLE `t2` DISABLE KEYS */;
INSERT INTO `t2` VALUES (1,'a'),(2,'b'),(10,'c');
/*!40000 ALTER TABLE `t2` ENABLE KEYS */;
UNLOCK TABLES;
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

-- Dump completed on 2012-01-02 18:03:58

insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;

flush status;
select sql_no_cache max(f1) as 'Query f2 = 1' from t1 where f2 = 1;
show status like 'handler_read%';

flush status;
select sql_no_cache max(f1) as 'Query f2 = 10' from t1 where f2 = 10;
show status like 'handler_read%';

flush status;
select sql_no_cache max(f1) as 'Query f2 in (1,10)' from t1 where f2 in (1,10);
show status like 'handler_read%';

flush status;
select sql_no_cache max(f) as 'Complex union' from (select sql_no_cache max(f1) as f from t1 where f2 = 1 UNION select max(f1) as f from t1 where f2 = 10) as b;
show status like 'handler_read%';


flush status;
select sql_no_cache max(f1) as 'Query f3 = a (using subquery)' from t1 where f2 = (select t2.f2 from t2 where f3 = 'a');
show status like 'handler_read%';

flush status;
select sql_no_cache max(f1) as 'Query f3 = a (using join)' from t1 join t2 on t1.f2 = t2.f2 where f3 = 'a';
show status like 'handler_read%';

flush status;
select sql_no_cache max(f1) as 'Query f3 = c (using subquery)' from t1 where f2 = (select t2.f2 from t2 where f3 = 'c');
show status like 'handler_read%';

flush status;
select sql_no_cache max(f1) as 'Query f3 = c (using join)' from t1 join t2 on t1.f2 = t2.f2 where f3 = 'c';
show status like 'handler_read%';

flush status;
select sql_no_cache max(f1) as 'Query f2 IN subquery' from t1 where f2 IN (select t2.f2 from t2 where f3 in('a', 'c'));
show status like 'handler_read%';

flush status;
select sql_no_cache max(f) as 'Query using complex join' from (select sql_no_cache max(f1) as f from t1 where f2 = (select t2.f2 from t2 where f3 = 'a') 
					UNION select max(f1) as f from t1 where f2 = (select t2.f2 from t2 where f3 = 'c')) as b;
show status like 'handler_read%';