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6660708523
Also changed Unique row not found to use uppercase first. This was done to make these messages consistent with the rest
365 lines
8.3 KiB
Text
365 lines
8.3 KiB
Text
drop table if exists t1,t2;
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create table t1 (a int not null auto_increment, b int not null, primary key(a));
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insert into t1 (b) values (2),(3),(5),(5),(5),(6),(7),(9);
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select SQL_CALC_FOUND_ROWS * from t1;
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a b
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1 2
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2 3
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3 5
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4 5
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5 5
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6 6
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7 7
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8 9
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select found_rows();
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found_rows()
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8
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select SQL_CALC_FOUND_ROWS * from t1 limit 1;
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a b
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1 2
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select found_rows();
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found_rows()
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8
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select SQL_BUFFER_RESULT SQL_CALC_FOUND_ROWS * from t1 limit 1;
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a b
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1 2
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select found_rows();
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found_rows()
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8
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select SQL_CALC_FOUND_ROWS * from t1 order by b desc limit 1;
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a b
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8 9
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select found_rows();
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found_rows()
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8
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select SQL_CALC_FOUND_ROWS distinct b from t1 limit 1;
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b
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2
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select found_rows();
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found_rows()
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6
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select SQL_CALC_FOUND_ROWS b,count(*) as c from t1 group by b order by c desc limit 1;
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b c
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5 3
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select found_rows();
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found_rows()
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6
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select SQL_CALC_FOUND_ROWS * from t1 left join t1 as t2 on (t1.b=t2.a) limit 2,1;
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a b a b
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3 5 5 5
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select found_rows();
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found_rows()
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8
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drop table t1;
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create table t1 (a int not null primary key);
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insert into t1 values (1),(2),(3),(4),(5);
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select sql_calc_found_rows a from t1 where a in (1,2,3) order by a desc limit 0,2;
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a
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3
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2
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select FOUND_ROWS();
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FOUND_ROWS()
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3
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select sql_calc_found_rows a from t1 where a in (1,2,3) order by a+2 desc limit 0,2;
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a
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3
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2
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select FOUND_ROWS();
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FOUND_ROWS()
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3
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drop table t1;
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CREATE TABLE t1 (
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`id` smallint(5) unsigned NOT NULL auto_increment,
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`kid` smallint(5) unsigned NOT NULL default '0',
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PRIMARY KEY (`id`),
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KEY `kid` (`kid`)
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);
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CREATE TABLE t2 (
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id smallint(5) unsigned NOT NULL auto_increment,
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name varchar(50) NOT NULL default '',
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email varchar(50) NOT NULL default '',
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PRIMARY KEY (id),
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UNIQUE KEY e_n (email,name)
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);
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EXPLAIN SELECT SQL_CALC_FOUND_ROWS DISTINCT email FROM t2 LEFT JOIN t1 ON kid = t2.id WHERE t1.id IS NULL LIMIT 10;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 system PRIMARY,kid NULL NULL NULL 0 Const row not found; Using temporary
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1 SIMPLE t2 ALL NULL NULL NULL NULL 200
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SELECT SQL_CALC_FOUND_ROWS DISTINCT email FROM t2 LEFT JOIN t1 ON kid = t2.id WHERE t1.id IS NULL LIMIT 10;
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email
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email1
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email2
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email3
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email4
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email5
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email6
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email7
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email8
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email9
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email10
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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200
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SELECT SQL_CALC_FOUND_ROWS DISTINCT email FROM t2 LEFT JOIN t1 ON kid = t2.id WHERE t1.id IS NULL order by email LIMIT 10;
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email
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email1
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email10
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email100
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email101
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email102
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email103
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email104
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email105
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email106
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email107
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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200
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SELECT DISTINCT email FROM t2 LEFT JOIN t1 ON kid = t2.id WHERE t1.id IS NULL LIMIT 10;
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email
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email1
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email2
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email3
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email4
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email5
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email6
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email7
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email8
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email9
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email10
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SELECT DISTINCT email FROM t2 LEFT JOIN t1 ON kid = t2.id WHERE t1.id IS NULL ORDER BY email LIMIT 10;
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email
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email1
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email10
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email100
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email101
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email102
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email103
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email104
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email105
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email106
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email107
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INSERT INTO `t1` (`id`, `kid`) VALUES ('0', '150');
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SELECT SQL_CALC_FOUND_ROWS DISTINCT email FROM t2 LEFT JOIN t1 ON kid = t2.id WHERE t1.id IS NULL LIMIT 10;
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email
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email1
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email2
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email3
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email4
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email5
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email6
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email7
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email8
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email9
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email10
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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199
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drop table t1,t2;
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CREATE TABLE `t1` (
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`titre` char(80) NOT NULL default '',
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`numeropost` mediumint(8) unsigned NOT NULL auto_increment,
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`maxnumrep` int(10) unsigned NOT NULL default '0',
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PRIMARY KEY (`numeropost`),
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KEY `maxnumrep` (`maxnumrep`)
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) ENGINE=MyISAM ROW_FORMAT=FIXED;
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INSERT INTO t1 (titre,maxnumrep) VALUES
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('test1','1'),('test2','2'),('test3','3');
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SELECT SQL_CALC_FOUND_ROWS titre,numeropost,maxnumrep FROM t1 WHERE numeropost IN (1,2) ORDER BY maxnumrep DESC LIMIT 0, 1;
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titre numeropost maxnumrep
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test2 2 2
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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2
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SELECT SQL_CALC_FOUND_ROWS 1 FROM (SELECT 1) as a LIMIT 0;
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1
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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1
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SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE numeropost > 1 LIMIT 0;
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titre numeropost maxnumrep
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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2
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SELECT SQL_CALC_FOUND_ROWS * FROM t1 LIMIT 0;
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titre numeropost maxnumrep
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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3
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SELECT SQL_CALC_FOUND_ROWS * FROM t1 ORDER BY numeropost LIMIT 0;
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titre numeropost maxnumrep
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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3
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drop table t1;
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create table t1 (id int, primary key (id));
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insert into t1 values (1), (2), (3), (4), (5);
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select SQL_CALC_FOUND_ROWS * from t1 where id > 3 limit 0, 1;
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id
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4
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select FOUND_ROWS();
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FOUND_ROWS()
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2
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select SQL_CALC_FOUND_ROWS * from t1 where id > 3 AND 1=2 limit 0, 1;
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id
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select FOUND_ROWS();
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FOUND_ROWS()
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0
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select SQL_CALC_FOUND_ROWS * from t1 where id > 6 limit 0, 1;
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id
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select FOUND_ROWS();
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FOUND_ROWS()
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0
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drop table t1;
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CREATE TABLE t1 ( a int not null, b int not null, KEY ab(a,b) );
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INSERT INTO t1 VALUES ( 47, 1 );
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INSERT INTO t1 VALUES ( 70, 1 );
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SELECT * FROM t1
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WHERE
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(
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( b =1 AND a BETWEEN 14 AND 21 ) OR
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( b =2 AND a BETWEEN 16 AND 18 ) OR
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( b =3 AND a BETWEEN 15 AND 19 )
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);
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a b
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DROP TABLE t1;
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CREATE TABLE t1 ( a integer, u varchar(15), r integer, key uao_idx( r, a, u));
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DELETE FROM t1
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WHERE ( r = 1 AND a IN ( 1, 2 ) AND ( u = 'w' OR u LIKE 'w/%' ) )
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OR ( r = 1 AND a IN ( 3 ) AND ( u = 'w/U' OR u LIKE 'w/U/%' ) )
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OR ( r = 1 AND a IN ( 1, 2, 3 ) AND ( u = 'w' ) );
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drop table t1;
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CREATE TABLE t1 (a VARCHAR(16), UNIQUE(a));
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INSERT INTO t1 VALUES ('1'), ('2'), ('3');
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SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a = '2' LIMIT 0, 1;
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a
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2
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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1
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DROP TABLE t1;
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CREATE TABLE t1 (a INT);
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INSERT INTO t1 VALUES (0), (0), (1), (2);
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SELECT SQL_CALC_FOUND_ROWS * FROM t1 WHERE a = 0 GROUP BY a HAVING a > 10;
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a
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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0
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DROP TABLE t1;
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SELECT 'foo';
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foo
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foo
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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1
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SELECT SQL_CALC_FOUND_ROWS 'foo';
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foo
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foo
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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1
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SELECT SQL_CALC_FOUND_ROWS 'foo' limit 0;
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foo
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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1
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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1
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SELECT SQL_CALC_FOUND_ROWS 'foo' UNION SELECT 'bar' LIMIT 0;
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foo
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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2
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CREATE TABLE t1 (a int, b int);
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INSERT INTO t1 VALUES (1,2), (1,3), (1,4), (1,5);
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SELECT SQL_CALC_FOUND_ROWS DISTINCT 'a' FROM t1 GROUP BY b LIMIT 2;
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a
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a
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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1
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DROP TABLE t1;
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create table t1 (f1 int primary key, f2 tinyint) engine=myisam;
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insert t1 values (10,3),(11,2),(12,3);
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create table t2 (f3 int primary key) engine=myisam;
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insert t2 values (11),(12),(13);
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select f1 from t1,t2 where f1=f3 and f2=3 order by f1;
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f1
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12
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select found_rows();
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found_rows()
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1
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drop table t1, t2;
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create table t1 (a1 int auto_increment primary key, c1 int);
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insert t1 (a1) values (null);
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insert t1 (a1) select null from t1;
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insert t1 (a1) select null from t1;
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insert t1 (a1) select null from t1;
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insert t1 (a1) select null from t1;
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insert t1 (a1) select null from t1;
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insert t1 (a1) select null from t1;
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insert t1 (a1) select null from t1;
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insert t1 (a1) select null from t1;
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insert t1 (a1) select null from t1;
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update t1 set c1=a1 % 2;
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create table t2 (a2 int, b2 int, c2 char(16) default '', primary key (a2, b2));
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insert t2 select a1, 1, 'ok' from t1;
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insert t2 select a1, 2, 'ko' from t1;
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insert t2 select a1, 3, 'ko' from t1;
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insert t2 select a1, 4, 'ok' from t1;
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insert t2 select a1, 5, 'ok' from t1;
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select sql_calc_found_rows distinct a1,c2 from t1 join t2 on a2=a1
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where a1 <= 256 and c1=0 and c2='ok' order by a1 desc limit 46;
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select found_rows();
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found_rows()
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128
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drop table t1, t2;
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create table t1 (i1 int, v1 int, primary key(i1,v1));
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insert into t1 values (1,1),(2,2),(3,3);
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create table t2 (i2 int primary key, v2 int);
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insert into t2 values (1,5),(2,5),(3,10);
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select 1 as res from t1 left join t2 on i1 = i2 where v2 = 5 or v1 = 5 or v1 = 10 order by v1;
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res
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1
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1
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select sql_calc_found_rows 1 as res from t1 left join t2 on i1 = i2 where v2 = 5 or v1 = 5 or v1 = 10 order by v1 limit 1;
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select found_rows() as count;
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count
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2
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select sql_calc_found_rows 1 as res from t1 left join t2 on i1 = i2 where v2 = 5 order by v1 limit 1;
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select found_rows() as count;
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count
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2
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drop table t1, t2;
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create table t1 (i int, v varchar(64), key (i));
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select sql_calc_found_rows * from t1 where i = 0 order by v limit 59,2;
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i v
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0 foo
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0 foo
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select found_rows();
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found_rows()
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75
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select sql_calc_found_rows * from t1 ignore index (i) where i = 0 order by v limit 59,2;
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i v
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0 foo
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0 foo
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select found_rows();
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found_rows()
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75
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drop table t1;
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create table t1(c1 int);
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insert into t1 values(1),(2),(3),(4),(5);
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select * from t1 order by c1 limit 2,1;
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c1
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3
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select found_rows();
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found_rows()
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3
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select sql_calc_found_rows * from t1 order by c1 limit 2,1;
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c1
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3
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select found_rows();
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found_rows()
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5
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drop table t1;
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