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locking type of temp table The problem is that INSERT INTO .. SELECT FROM .. and CREATE TABLE .. SELECT FROM a temporary table could inadvertently overwrite the locking type of the temporary table. The lock type of temporary tables should be a write lock by default. The solution is to reset the lock type of temporary tables back to its default value after they are used in a statement.
239 lines
6.0 KiB
Plaintext
239 lines
6.0 KiB
Plaintext
# mysqltest should be fixed
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-- source include/not_embedded.inc
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#
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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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drop view if exists v1;
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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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--error 1050
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CREATE TEMPORARY TABLE t1 (a int not null, b char (10) not null);
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--error 1050
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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 ER_DUP_ENTRY
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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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# Fix for BUG#8921: Check that temporary table is ingored by view commands.
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create temporary table v1 as select 'This is temp. table' A;
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create view v1 as select 'This is view' A;
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select * from v1;
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show create table v1;
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show create view v1;
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drop view v1;
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select * from v1;
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create view v1 as select 'This is view again' A;
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select * from v1;
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drop table v1;
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select * from v1;
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drop view v1;
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# Bug #8497: tmpdir with extra slashes would cause failures
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#
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create table t1 (a int, b int, index(a), index(b));
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create table t2 (c int auto_increment, d varchar(255), primary key (c));
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insert into t1 values (3,1),(3,2);
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insert into t2 values (NULL, 'foo'), (NULL, 'bar');
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select d, c from t1 left join t2 on b = c where a = 3 order by d;
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drop table t1, t2;
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#
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# BUG#21096: locking issue ; temporary table conflicts.
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#
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# The problem was that on DROP TEMPORARY table name lock was acquired,
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# which should not be done.
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#
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--disable_warnings
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DROP TABLE IF EXISTS t1;
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--enable_warnings
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CREATE TABLE t1 (i INT);
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LOCK TABLE t1 WRITE;
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connect (conn1, localhost, root,,);
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CREATE TEMPORARY TABLE t1 (i INT);
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--echo The following command should not block
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DROP TEMPORARY TABLE t1;
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disconnect conn1;
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connection default;
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DROP TABLE t1;
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#
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# Check that it's not possible to drop a base table with
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# DROP TEMPORARY statement.
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#
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CREATE TABLE t1 (i INT);
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CREATE TEMPORARY TABLE t2 (i INT);
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--error 1051
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DROP TEMPORARY TABLE t2, t1;
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# Table t2 should have been dropped.
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--error 1146
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SELECT * FROM t2;
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# But table t1 should still be there.
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SELECT * FROM t1;
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DROP TABLE t1;
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--echo End of 4.1 tests.
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#
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# Bug #24791: Union with AVG-groups generates wrong results
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#
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CREATE TABLE t1 ( c FLOAT( 20, 14 ) );
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INSERT INTO t1 VALUES( 12139 );
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CREATE TABLE t2 ( c FLOAT(30,18) );
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INSERT INTO t2 VALUES( 123456 );
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SELECT AVG( c ) FROM t1 UNION SELECT 1;
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SELECT 1 UNION SELECT AVG( c ) FROM t1;
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SELECT 1 UNION SELECT * FROM t2 UNION SELECT 1;
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SELECT c/1 FROM t1 UNION SELECT 1;
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DROP TABLE t1, t2;
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#
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# Test truncate with temporary tables
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#
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create temporary table t1 (a int);
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insert into t1 values (4711);
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select * from t1;
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truncate t1;
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insert into t1 values (42);
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select * from t1;
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drop table t1;
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#
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# Bug #35392: Delete all statement does not execute properly after
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# few delete statements
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#
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CREATE TEMPORARY TABLE t1(a INT, b VARCHAR(20));
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INSERT INTO t1 VALUES(1, 'val1'), (2, 'val2'), (3, 'val3');
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DELETE FROM t1 WHERE a=1;
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SELECT count(*) FROM t1;
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DELETE FROM t1;
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SELECT * FROM t1;
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DROP TABLE t1;
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#
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# Bug#41348: INSERT INTO tbl SELECT * FROM temp_tbl overwrites locking type of temp table
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#
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--disable_warnings
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DROP TABLE IF EXISTS t1,t2;
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DROP FUNCTION IF EXISTS f1;
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--enable_warnings
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CREATE TEMPORARY TABLE t1 (a INT);
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CREATE TEMPORARY TABLE t2 LIKE t1;
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DELIMITER |;
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CREATE FUNCTION f1() RETURNS INT
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BEGIN
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return 1;
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END|
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DELIMITER ;|
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INSERT INTO t2 SELECT * FROM t1;
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INSERT INTO t1 SELECT f1();
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CREATE TABLE t3 SELECT * FROM t1;
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INSERT INTO t1 SELECT f1();
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UPDATE t1,t2 SET t1.a = t2.a;
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INSERT INTO t2 SELECT f1();
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DROP TABLE t1,t2,t3;
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DROP FUNCTION f1;
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--echo End of 5.1 tests
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