# # Test of temporary tables # drop table if exists t1,t2; 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 type=heap select * from t1; create TEMPORARY TABLE IF NOT EXISTS t2 (a int) type=heap; # This should give errors !$1050 CREATE TEMPORARY TABLE t1 (a int not null, b char (10) not null); !$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 # drop table if exists t1; 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;