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89 lines
2.9 KiB
Text
89 lines
2.9 KiB
Text
#
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# Test of temporary tables
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#
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--disable_warnings
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drop table if exists t1,t2;
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--enable_warnings
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CREATE TABLE t1 (c int not null, d char (10) not null);
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insert into t1 values(1,""),(2,"a"),(3,"b");
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CREATE TEMPORARY TABLE t1 (a int not null, b char (10) not null);
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insert into t1 values(4,"e"),(5,"f"),(6,"g");
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alter table t1 rename t2;
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select * from t1;
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select * from t2;
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CREATE TABLE t2 (x int not null, y int not null);
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alter table t2 rename t1;
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select * from t1;
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create TEMPORARY TABLE t2 engine=heap select * from t1;
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create TEMPORARY TABLE IF NOT EXISTS t2 (a int) engine=heap;
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# This should give errors
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!$1050 CREATE TEMPORARY TABLE t1 (a int not null, b char (10) not null);
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!$1050 ALTER TABLE t1 RENAME t2;
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select * from t2;
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alter table t2 add primary key (a,b);
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drop table t1,t2;
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select * from t1;
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drop table t2;
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create temporary table t1 select *,2 as "e" from t1;
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select * from t1;
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drop table t1;
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drop table t1;
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#
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# Test CONCAT_WS with temporary tables
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#
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CREATE TABLE t1 (pkCrash INTEGER PRIMARY KEY,strCrash VARCHAR(255));
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INSERT INTO t1 ( pkCrash, strCrash ) VALUES ( 1, '1');
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SELECT CONCAT_WS(pkCrash, strCrash) FROM t1;
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drop table t1;
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create temporary table t1 select 1 as 'x';
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drop table t1;
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CREATE TABLE t1 (x INT);
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INSERT INTO t1 VALUES (1), (2), (3);
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CREATE TEMPORARY TABLE tmp SELECT *, NULL FROM t1;
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drop table t1;
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#
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# Problem with ELT
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#
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create temporary table t1 (id int(10) not null unique);
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create temporary table t2 (id int(10) not null primary key,
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val int(10) not null);
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# put in some initial values
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insert into t1 values (1),(2),(4);
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insert into t2 values (1,1),(2,1),(3,1),(4,2);
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# do a query using ELT, a join and an ORDER BY.
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select one.id, two.val, elt(two.val,'one','two') from t1 one, t2 two where two.id=one.id order by one.id;
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drop table t1,t2;
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#
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# Test of failed ALTER TABLE on temporary table
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#
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create temporary table t1 (a int not null);
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insert into t1 values (1),(1);
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-- error 1062
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alter table t1 add primary key (a);
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drop table t1;
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#
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# In MySQL 4.0.4 doing a GROUP BY on a NULL column created a disk based
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# temporary table when a memory based one would be good enough.
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CREATE TABLE t1 (
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d datetime default NULL
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) ENGINE=MyISAM;
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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');
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flush status;
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select * from t1 group by d;
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show status like "created_tmp%tables";
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drop table t1;
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