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Fixed UNION fields type/length detecting

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This commit is contained in:
bell@sanja.is.com.ua
2003-11-23 02:01:15 +02:00
parent 4883d21b29
commit 7191ea0ae3
17 changed files with 799 additions and 317 deletions
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209
mysql-test/r/union.result
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@ -53,7 +53,7 @@ select 0,'#' union select a,b from t1 union all select a,b from t2 union select
4 d
5 f
6 e
7 g
7 gg
select a,b from t1 union select a,b from t1;
a b
1 a
@ -449,10 +449,10 @@ INSERT INTO t2 (id, id_master, text1, text2) VALUES("4", "1",
SELECT 1 AS id_master, 1 AS id, NULL AS text1, 'ABCDE' AS text2 UNION SELECT id_master, t2.id, text1, text2 FROM t1 LEFT JOIN t2 ON t1.id = t2.id_master;
id_master id text1 text2
1 1 NULL ABCDE
1 1 bar1
1 2 bar2
1 1 foo1 bar1
1 2 foo2 bar2
1 3 NULL bar3
1 4 bar4
1 4 foo4 bar4
SELECT 1 AS id_master, 1 AS id, 'ABCDE' AS text1, 'ABCDE' AS text2 UNION SELECT id_master, t2.id, text1, text2 FROM t1 LEFT JOIN t2 ON t1.id = t2.id_master;
id_master id text1 text2
1 1 ABCDE ABCDE
@ -523,3 +523,204 @@ pla_id matintnum
105 c
0 0
drop table t1, t2;
create table t1 SELECT "a" as a UNION select "aa" as a;
select * from t1;
a
a
aa
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` char(2) NOT NULL default ''
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT 12 as a UNION select "aa" as a;
select * from t1;
a
12
aa
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` char(2) NOT NULL default ''
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT 12 as a UNION select 12.2 as a;
select * from t1;
a
12.0
12.2
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` double(4,1) NOT NULL default '0.0'
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t2 (it1 tinyint, it2 tinyint not null, i int not null, f float, d double, y year, da date, dt datetime, sc char(10), sv varchar(10), b blob);
insert into t2 values (NULL, 1, 3, 1.5, 2.5, 1972, '1972-10-22', '1972-10-22 11:50', 'testc', 'testv', 'tetetetetest');
create table t1 SELECT it2 from t2 UNION select it1 from t2;
select * from t1;
it2
1
NULL
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`it2` tinyint(4) default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT it2 from t2 UNION select i from t2;
select * from t1;
it2
1
3
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`it2` int(11) NOT NULL default '0'
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT i from t2 UNION select f from t2;
select * from t1;
i
3
1.5
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` float default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT f from t2 UNION select d from t2;
select * from t1;
f
1.5
2.5
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f` double default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT f from t2 UNION select y from t2;
select * from t1;
f
1.5
1972
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f` double default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT f from t2 UNION select da from t2;
select * from t1;
f
1.5
1972-10-22
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f` char(12) binary default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT y from t2 UNION select da from t2;
select * from t1;
y
1972
1972-10-22
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`y` char(10) binary default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT y from t2 UNION select dt from t2;
select * from t1;
y
1972
1972-10-22 11:50:00
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`y` char(19) binary default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT da from t2 UNION select dt from t2;
select * from t1;
da
1972-10-22 00:00:00
1972-10-22 11:50:00
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`da` datetime default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT dt from t2 UNION select sc from t2;
select * from t1;
dt
1972-10-22 11:50:00
testc
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`dt` char(19) default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT dt from t2 UNION select sv from t2;
select * from t1;
dt
1972-10-22 11:50:00
testv
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`dt` char(19) default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT sc from t2 UNION select sv from t2;
select * from t1;
sc
testc
testv
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`sc` varchar(10) default NULL
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT dt from t2 UNION select b from t2;
select * from t1;
dt
1972-10-22 11:50:00
tetetetetest
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`dt` blob
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT sv from t2 UNION select b from t2;
select * from t1;
sv
testv
tetetetetest
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`sv` blob
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 SELECT i from t2 UNION select d from t2 UNION select b from t2;
select * from t1;
i
3
2.5
tetetetetest
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` blob
) TYPE=MyISAM DEFAULT CHARSET=latin1
drop table t1,t2;