2001-08-02 05:29:50 +02:00
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#
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# Test of unions
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#
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2001-08-12 15:25:28 +02:00
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drop table if exists t1,t2,t3;
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2001-08-02 05:29:50 +02:00
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CREATE TABLE t1 (a int not null, b char (10) not null);
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insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
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CREATE TABLE t2 (a int not null, b char (10) not null);
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insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
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select a,b from t1 union select a,b from t2;
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select a,b from t1 union all select a,b from t2;
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select a,b from t1 union all select a,b from t2 order by b;
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select a,b from t1 union all select a,b from t2 union select 7,'g';
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select 0,'#' union select a,b from t1 union all select a,b from t2 union select 7,'gg';
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select a,b from t1 union select a,b from t1;
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select 't1',b,count(*) from t1 group by b UNION select 't2',b,count(*) from t2 group by b;
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2001-10-25 13:41:49 +02:00
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#test alternate syntax for unions
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(select a,b from t1 limit 2) union all (select a,b from t2 order by a) limit 4;
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2001-12-13 01:31:19 +01:00
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(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1);
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(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by b desc;
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2002-04-02 19:08:55 +02:00
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explain (select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by b desc;
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2002-04-03 16:52:31 +02:00
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(select sql_calc_found_rows a,b from t1 limit 2) union all (select a,b from t2 order by a) limit 2;
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select found_rows();
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2002-07-24 18:55:08 +02:00
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#
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2001-08-14 19:33:49 +02:00
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# Test some error conditions with UNION
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2002-07-24 18:55:08 +02:00
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#
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2001-08-02 05:29:50 +02:00
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explain select a,b from t1 union all select a,b from t2;
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2002-02-28 20:58:32 +01:00
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--error 1054
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explain select xx from t1 union select 1;
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explain select a,b from t1 union select 1;
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explain select 1 union select a,b from t1 union select 1;
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explain select a,b from t1 union select 1 limit 0;
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2001-11-04 14:43:41 +01:00
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--error 1221
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2001-08-02 05:29:50 +02:00
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select a,b from t1 into outfile 'skr' union select a,b from t2;
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2001-08-13 14:24:29 +02:00
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2001-11-04 14:43:41 +01:00
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--error 1221
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2001-08-13 14:24:29 +02:00
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select a,b from t1 order by a union select a,b from t2;
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2001-11-04 14:43:41 +01:00
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--error 1221
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2001-08-14 19:33:49 +02:00
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insert into t3 select a from t1 order by a union select a from t2;
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2001-11-04 14:43:41 +01:00
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--error 1222
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2001-09-17 14:40:03 +02:00
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create table t3 select a,b from t1 union select a from t2;
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2001-11-04 14:43:41 +01:00
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--error 1222
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2001-08-02 05:29:50 +02:00
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select a,b from t1 union select a from t2;
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2001-08-14 19:33:49 +02:00
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2001-11-04 14:43:41 +01:00
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--error 1222
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2001-09-17 14:40:03 +02:00
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select * from t1 union select a from t2;
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2001-11-04 14:43:41 +01:00
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--error 1222
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2001-09-17 14:40:03 +02:00
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select a from t1 union select * from t2;
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2002-07-24 18:55:08 +02:00
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--error 1234
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select * from t1 union select SQL_BUFFER_RESULT * from t2;
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2001-08-14 19:33:49 +02:00
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# Test CREATE, INSERT and REPLACE
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2001-08-12 15:25:28 +02:00
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create table t3 select a,b from t1 union all select a,b from t2;
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insert into t3 select a,b from t1 union all select a,b from t2;
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2001-08-14 19:33:49 +02:00
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replace into t3 select a,b as c from t1 union all select a,b from t2;
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2001-08-12 15:25:28 +02:00
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drop table t1,t2,t3;
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2001-09-14 18:50:56 +02:00
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#
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# Test bug reported by joc@presence-pc.com
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#
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CREATE TABLE t1 (
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`pseudo` char(35) NOT NULL default '',
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`pseudo1` char(35) NOT NULL default '',
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`same` tinyint(1) unsigned NOT NULL default '1',
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PRIMARY KEY (`pseudo1`),
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KEY `pseudo` (`pseudo`)
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) TYPE=MyISAM;
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INSERT INTO t1 (pseudo,pseudo1,same) VALUES ('joce', 'testtt', 1),('joce', 'tsestset', 1),('dekad', 'joce', 1);
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SELECT pseudo FROM t1 WHERE pseudo1='joce' UNION SELECT pseudo FROM t1 WHERE pseudo='joce';
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2001-09-17 21:44:51 +02:00
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SELECT pseudo1 FROM t1 WHERE pseudo1='joce' UNION SELECT pseudo1 FROM t1 WHERE pseudo='joce';
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2001-09-22 16:40:57 +02:00
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SELECT * FROM t1 WHERE pseudo1='joce' UNION SELECT * FROM t1 WHERE pseudo='joce' order by pseudo desc,pseudo1 desc;
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2001-09-21 02:38:35 +02:00
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SELECT pseudo1 FROM t1 WHERE pseudo='joce' UNION SELECT pseudo FROM t1 WHERE pseudo1='joce';
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SELECT pseudo1 FROM t1 WHERE pseudo='joce' UNION ALL SELECT pseudo FROM t1 WHERE pseudo1='joce';
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SELECT pseudo1 FROM t1 WHERE pseudo='joce' UNION SELECT 1;
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2001-09-14 18:50:56 +02:00
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drop table t1;
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2002-03-19 13:07:52 +01:00
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drop table if exists t1,t2;
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create table t1 (a int);
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create table t2 (a int);
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insert into t1 values (1),(2),(3),(4),(5);
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insert into t2 values (11),(12),(13),(14),(15);
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(select * from t1 limit 2) union (select * from t2 limit 3) limit 4;
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(select * from t1 limit 2) union (select * from t2 limit 3);
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2002-03-22 12:26:13 +01:00
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(select * from t1 limit 2) union (select * from t2 limit 20,3);
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set SQL_SELECT_LIMIT=2;
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2002-07-23 17:31:22 +02:00
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(select * from t1 limit 1) union (select * from t2 limit 3);
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2002-03-22 12:26:13 +01:00
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set SQL_SELECT_LIMIT=DEFAULT;
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2002-03-19 13:07:52 +01:00
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drop table t1,t2;
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