temp_table.test
上传用户:romrleung
上传日期:2022-05-23
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文件大小:3k
- #
- # Test of temporary tables
- #
- --disable_warnings
- drop table if exists t1,t2;
- --enable_warnings
- CREATE TABLE t1 (c int not null, d char (10) not null);
- insert into t1 values(1,""),(2,"a"),(3,"b");
- CREATE TEMPORARY TABLE t1 (a int not null, b char (10) not null);
- insert into t1 values(4,"e"),(5,"f"),(6,"g");
- alter table t1 rename t2;
- select * from t1;
- select * from t2;
- CREATE TABLE t2 (x int not null, y int not null);
- alter table t2 rename t1;
- select * from t1;
- create TEMPORARY TABLE t2 engine=heap select * from t1;
- create TEMPORARY TABLE IF NOT EXISTS t2 (a int) engine=heap;
- # This should give errors
- --error 1050
- CREATE TEMPORARY TABLE t1 (a int not null, b char (10) not null);
- --error 1050
- ALTER TABLE t1 RENAME t2;
- select * from t2;
- alter table t2 add primary key (a,b);
- drop table t1,t2;
- select * from t1;
- drop table t2;
- create temporary table t1 select *,2 as "e" from t1;
- select * from t1;
- drop table t1;
- drop table t1;
- #
- # Test CONCAT_WS with temporary tables
- #
- CREATE TABLE t1 (pkCrash INTEGER PRIMARY KEY,strCrash VARCHAR(255));
- INSERT INTO t1 ( pkCrash, strCrash ) VALUES ( 1, '1');
- SELECT CONCAT_WS(pkCrash, strCrash) FROM t1;
- drop table t1;
- create temporary table t1 select 1 as 'x';
- drop table t1;
- CREATE TABLE t1 (x INT);
- INSERT INTO t1 VALUES (1), (2), (3);
- CREATE TEMPORARY TABLE tmp SELECT *, NULL FROM t1;
- drop table t1;
- #
- # Problem with ELT
- #
- create temporary table t1 (id int(10) not null unique);
- create temporary table t2 (id int(10) not null primary key,
- val int(10) not null);
- # put in some initial values
- insert into t1 values (1),(2),(4);
- insert into t2 values (1,1),(2,1),(3,1),(4,2);
- # do a query using ELT, a join and an ORDER BY.
- select one.id, two.val, elt(two.val,'one','two') from t1 one, t2 two where two.id=one.id order by one.id;
- drop table t1,t2;
- #
- # Test of failed ALTER TABLE on temporary table
- #
- create temporary table t1 (a int not null);
- insert into t1 values (1),(1);
- -- error 1062
- alter table t1 add primary key (a);
- drop table t1;
- #
- # In MySQL 4.0.4 doing a GROUP BY on a NULL column created a disk based
- # temporary table when a memory based one would be good enough.
- CREATE TABLE t1 (
- d datetime default NULL
- ) ENGINE=MyISAM;
- INSERT INTO t1 VALUES ('2002-10-24 14:50:32'),('2002-10-24 14:50:33'),('2002-10-24 14:50:34'),('2002-10-24 14:50:34'),('2002-10-24 14:50:34'),('2002-10-24 14:50:35'),('2002-10-24 14:50:35'),('2002-10-24 14:50:35'),('2002-10-24 14:50:35'),('2002-10-24 14:50:36'),('2002-10-24 14:50:36'),('2002-10-24 14:50:36'),('2002-10-24 14:50:36'),('2002-10-24 14:50:37'),('2002-10-24 14:50:37'),('2002-10-24 14:50:37'),('2002-10-24 14:50:37'),('2002-10-24 14:50:38'),('2002-10-24 14:50:38'),('2002-10-24 14:50:38'),('2002-10-24 14:50:39'),('2002-10-24 14:50:39'),('2002-10-24 14:50:39'),('2002-10-24 14:50:39'),('2002-10-24 14:50:40'),('2002-10-24 14:50:40'),('2002-10-24 14:50:40');
- flush status;
- select * from t1 group by d;
- show status like "created_tmp%tables";
- drop table t1;
- # Bug #8497: tmpdir with extra slashes would cause failures
- #
- create table t1 (a int, b int, index(a), index(b));
- create table t2 (c int auto_increment, d varchar(255), primary key (c));
- insert into t1 values (3,1),(3,2);
- insert into t2 values (NULL, 'foo'), (NULL, 'bar');
- select d, c from t1 left join t2 on b = c where a = 3 order by d;
- drop table t1, t2;
- # End of 4.1 tests