order_by.test 12.6 KB
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#
# Bug with order by
#

drop table if exists t1,t2,t3;

CREATE TABLE t1 (
  id int(6) DEFAULT '0' NOT NULL,
  idservice int(5),
  clee char(20) NOT NULL,
  flag char(1),
  KEY id (id),
  PRIMARY KEY (clee)
);


INSERT INTO t1 VALUES (2,4,'6067169d','Y');
INSERT INTO t1 VALUES (2,5,'606716d1','Y');
INSERT INTO t1 VALUES (2,1,'606717c1','Y');
INSERT INTO t1 VALUES (3,1,'6067178d','Y');
INSERT INTO t1 VALUES (2,6,'60671515','Y');
INSERT INTO t1 VALUES (2,7,'60671569','Y');
INSERT INTO t1 VALUES (2,3,'dd','Y');

CREATE TABLE t2 (
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  id int(6) NOT NULL auto_increment,
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  description varchar(40) NOT NULL,
  idform varchar(40),
  ordre int(6) unsigned DEFAULT '0' NOT NULL,
  image varchar(60),
  PRIMARY KEY (id),
  KEY id (id,ordre)
);

#
# Dumping data for table 't2'
#

INSERT INTO t2 VALUES (1,'Emettre un appel d''offres','en_construction.html',10,'emettre.gif');
INSERT INTO t2 VALUES (2,'Emettre des soumissions','en_construction.html',20,'emettre.gif');
INSERT INTO t2 VALUES (7,'Liste des t2','t2_liste_form.phtml',51060,'link.gif');
INSERT INTO t2 VALUES (8,'Consulter les soumissions','consulter_soumissions.phtml',200,'link.gif');
INSERT INTO t2 VALUES (9,'Ajouter un type de materiel','typeMateriel_ajoute_form.phtml',51000,'link.gif');
INSERT INTO t2 VALUES (10,'Lister/modifier un type de materiel','typeMateriel_liste_form.phtml',51010,'link.gif');
INSERT INTO t2 VALUES (3,'Crer une fiche de client','clients_ajoute_form.phtml',40000,'link.gif');
INSERT INTO t2 VALUES (4,'Modifier des clients','en_construction.html',40010,'link.gif');
INSERT INTO t2 VALUES (5,'Effacer des clients','en_construction.html',40020,'link.gif');
INSERT INTO t2 VALUES (6,'Ajouter un service','t2_ajoute_form.phtml',51050,'link.gif');


select t1.id,t1.idservice,t2.ordre,t2.description  from t1, t2 where t1.id = 2   and t1.idservice = t2.id  order by t2.ordre;
 
drop table t1,t2;

#
# Test of ORDER BY on concat() result
#

create table t1 (first char(10),last char(10));
insert into t1 values ("Michael","Widenius");
insert into t1 values ("Allan","Larsson");
insert into t1 values ("David","Axmark");
select concat(first," ",last) as name from t1 order by name;
select concat(last," ",first) as name from t1 order by name;
drop table t1;

#
# bug in distinct + order by
#

create table t1 (i int);
insert into t1 values(1),(2),(1),(2),(1),(2),(3);
select distinct i from t1;
select distinct i from t1 order by rand(5);
select distinct i from t1 order by i desc;
select distinct i from t1 order by 1-i;
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select distinct i from t1 order by mod(i,2),i;
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drop table t1;

#
# Order by on first index part
#

create table t1 (id int not null,col1 int not null,col2 int not null,index(col1));
insert into t1 values(1,2,2),(2,2,1),(3,1,2),(4,1,1),(5,1,4),(6,2,3),(7,3,1),(8,2,4);
select * from t1 order by col1,col2;
select col1 from t1 order by id;
select col1 as id from t1 order by t1.id;
select concat(col1) as id from t1 order by t1.id;
drop table t1;

#
# Test of order by on field()
#

CREATE TABLE t1 (id int auto_increment primary key,aika varchar(40),aikakentta  timestamp);
insert into t1 (aika) values ('Keskiviikko');
insert into t1 (aika) values ('Tiistai');
insert into t1 (aika) values ('Maanantai');
insert into t1 (aika) values ('Sunnuntai');

SELECT FIELD(SUBSTRING(t1.aika,1,2),'Ma','Ti','Ke','To','Pe','La','Su') AS test FROM t1 ORDER by test;
drop table t1;

#
# Test of ORDER BY on IF
#

CREATE TABLE t1
(
  a          int unsigned       NOT NULL,
  b          int unsigned       NOT NULL,
  c          int unsigned       NOT NULL,
  UNIQUE(a),
  INDEX(b),
  INDEX(c)
);

CREATE TABLE t2
(
  c          int unsigned       NOT NULL,
  i          int unsigned       NOT NULL,
  INDEX(c)
);

CREATE TABLE t3
(
  c          int unsigned       NOT NULL,
  v          varchar(64),
  INDEX(c)
);

INSERT INTO t1 VALUES (1,1,1);
INSERT INTO t1 VALUES (2,1,2);
INSERT INTO t1 VALUES (3,2,1);
INSERT INTO t1 VALUES (4,2,2);
INSERT INTO t2 VALUES (1,50);
INSERT INTO t2 VALUES (2,25);
INSERT INTO t3 VALUES (1,'123 Park Place');
INSERT INTO t3 VALUES (2,'453 Boardwalk');

SELECT    a,b,if(b = 1,i,if(b = 2,v,''))
FROM      t1
LEFT JOIN t2 USING(c)
LEFT JOIN t3 ON t3.c = t1.c;

SELECT    a,b,if(b = 1,i,if(b = 2,v,''))
FROM      t1
LEFT JOIN t2 USING(c)
LEFT JOIN t3 ON t3.c = t1.c
ORDER BY a;

drop table t1,t2,t3;

#
# Test of ORDER BY (Bug found by Dean Edmonds)
#

create table t1 (ID int not null primary key, TransactionID int not null);
insert into t1 (ID, TransactionID) values  (1,  87), (2,  89), (3,  92), (4,  94), (5,  486), (6,  490), (7,  753), (9,  828), (10, 832), (11, 834), (12, 840);
create table t2 (ID int not null primary key, GroupID int not null);
 insert into t2 (ID, GroupID) values (87,  87), (89,  89), (92,  92), (94,  94), (486, 486), (490, 490),(753, 753), (828, 828), (832, 832), (834, 834), (840, 840);
create table t3 (ID int not null primary key, DateOfAction date not null);
insert into t3 (ID, DateOfAction) values  (87,  '1999-07-19'), (89,  '1999-07-19'), (92,  '1999-07-19'), (94,  '1999-07-19'), (486, '1999-07-18'), (490, '2000-03-27'), (753, '2000-03-28'), (828, '1999-07-27'), (832, '1999-07-27'),(834, '1999-07-27'), (840, '1999-07-27');
select t3.DateOfAction, t1.TransactionID from t1 join t2 join t3 where t2.ID = t1.TransactionID and t3.ID = t2.GroupID order by t3.DateOfAction, t1.TransactionID; 
select t3.DateOfAction, t1.TransactionID from t1 join t2 join t3 where t2.ID = t1.TransactionID and t3.ID = t2.GroupID order by t1.TransactionID,t3.DateOfAction; 
drop table t1,t2,t3;
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#bug reported by Wouter de Jong

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drop table if exists t1;
CREATE TABLE t1 (
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  member_id int(11) NOT NULL auto_increment,
  inschrijf_datum varchar(20) NOT NULL default '',
  lastchange_datum varchar(20) NOT NULL default '',
  nickname varchar(20) NOT NULL default '',
  password varchar(8) NOT NULL default '',
  voornaam varchar(30) NOT NULL default '',
  tussenvoegsels varchar(10) NOT NULL default '',
  achternaam varchar(50) NOT NULL default '',
  straat varchar(100) NOT NULL default '',
  postcode varchar(10) NOT NULL default '',
  wijk varchar(40) NOT NULL default '',
  plaats varchar(50) NOT NULL default '',
  telefoon varchar(10) NOT NULL default '',
  geboortedatum date NOT NULL default '0000-00-00',
  geslacht varchar(5) NOT NULL default '',
  email varchar(80) NOT NULL default '',
  uin varchar(15) NOT NULL default '',
  homepage varchar(100) NOT NULL default '',
  internet varchar(15) NOT NULL default '',
  scherk varchar(30) NOT NULL default '',
  favo_boek varchar(50) NOT NULL default '',
  favo_tijdschrift varchar(50) NOT NULL default '',
  favo_tv varchar(50) NOT NULL default '',
  favo_eten varchar(50) NOT NULL default '',
  favo_muziek varchar(30) NOT NULL default '',
  info text NOT NULL,
  ipnr varchar(30) NOT NULL default '',
  PRIMARY KEY  (member_id)
) TYPE=MyISAM PACK_KEYS=1;

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insert into t1 (member_id) values (1),(2),(3);
select member_id, nickname, voornaam FROM t1
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ORDER by lastchange_datum DESC LIMIT 2;
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drop table t1;
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#
# Test optimization of ORDER BY DESC
#
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create table t1 (a int not null, b int, c varchar(10), key (a, b, c));
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insert into t1 values (1, NULL, NULL), (1, NULL, 'b'), (1, 1, NULL), (1, 1, 'b'), (1, 1, 'b'), (2, 1, 'a'), (2, 1, 'b'), (2, 2, 'a'), (2, 2, 'b'), (2, 3, 'c'),(1,3,'b');

explain select * from t1 where (a = 1 and b is null and c = 'b') or (a > 2) order by a desc;
select * from t1 where (a = 1 and b is null and c = 'b') or (a > 2) order by a desc;
explain select * from t1 where a >= 1 and a < 3 order by a desc;
select * from t1 where a >= 1 and a < 3 order by a desc;
explain select * from t1 where a = 1 order by a desc, b desc;
select * from t1 where a = 1 order by a desc, b desc;
explain select * from t1 where a = 1 and b is null order by a desc, b desc;
select * from t1 where a = 1 and b is null order by a desc, b desc;
explain select * from t1 where a >= 1 and a < 3 and b >0 order by a desc,b desc;
explain select * from t1 where a = 2 and b >0 order by a desc,b desc;
explain select * from t1 where a = 2 and b is null order by a desc,b desc;
explain select * from t1 where a = 2 and (b is null or b > 0) order by a
desc,b desc;
explain select * from t1 where a = 2 and b > 0 order by a desc,b desc;
explain select * from t1 where a = 2 and b < 2 order by a desc,b desc;
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explain select * from t1 where a = 1 order by b desc;
select * from t1 where a = 1 order by b desc;
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#
# Test things when we don't have NULL keys
#

alter table t1 modify b int not null, modify c varchar(10) not null;
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explain select * from t1 order by a, b, c;
select * from t1 order by a, b, c;
explain select * from t1 order by a desc, b desc, c desc;
select * from t1 order by a desc, b desc, c desc;
# test multiple ranges, NO_MAX_RANGE and EQ_RANGE
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explain select * from t1 where (a = 1 and b = 1 and c = 'b') or (a > 2) order by a desc;
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select * from t1 where (a = 1 and b = 1 and c = 'b') or (a > 2) order by a desc;
# test NEAR_MAX, NO_MIN_RANGE
explain select * from t1 where a < 2 and b <= 1 order by a desc, b desc;
select * from t1 where a < 2 and b <= 1 order by a desc, b desc;
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select count(*) from t1 where a < 5 and b > 0;
select * from t1 where a < 5 and b > 0 order by a desc,b desc;
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# test HA_READ_AFTER_KEY (at the end of the file), NEAR_MIN
explain select * from t1 where a between 1 and 3 and b <= 1 order by a desc, b desc;
select * from t1 where a between 1 and 3 and b <= 1 order by a desc, b desc;
# test HA_READ_AFTER_KEY (in the middle of the file)
explain select * from t1 where a between 0 and 1 order by a desc, b desc;
select * from t1 where a between 0 and 1 order by a desc, b desc;
drop table t1;

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CREATE TABLE t1 (
  gid int(10) unsigned NOT NULL auto_increment,
  cid smallint(5) unsigned NOT NULL default '0',
  PRIMARY KEY  (gid),
  KEY component_id (cid)
) TYPE=MyISAM;
INSERT INTO t1 VALUES (103853,108),(103867,108),(103962,108),(104505,108),(104619,108),(104620,108);
ALTER TABLE t1 add skr int(10) not null;

CREATE TABLE t2 (
  gid int(10) unsigned NOT NULL default '0',
  uid smallint(5) unsigned NOT NULL default '1',
  sid tinyint(3) unsigned NOT NULL default '1',
  PRIMARY KEY  (gid),
  KEY uid (uid),
  KEY status_id (sid)
) TYPE=MyISAM;
INSERT INTO t2 VALUES (103853,250,5),(103867,27,5),(103962,27,5),(104505,117,5),(104619,75,5),(104620,15,5);

CREATE TABLE t3 (
  uid smallint(6) NOT NULL auto_increment,
  PRIMARY KEY  (uid)
) TYPE=MyISAM;
INSERT INTO t3 VALUES (1),(15),(27),(75),(117),(250);
ALTER TABLE t3 add skr int(10) not null;

select t1.gid, t2.sid, t3.uid from t2, t1, t3 where t2.gid = t1.gid and t2.uid = t3.uid order by t3.uid, t1.gid;
select t1.gid, t2.sid, t3.uid from t3, t2, t1 where t2.gid = t1.gid and t2.uid = t3.uid order by t3.uid, t1.gid;

# The following ORDER BY can be optimimized
EXPLAIN select t1.gid, t2.sid, t3.uid from t3, t2, t1 where t2.gid = t1.gid and t2.uid = t3.uid order by t1.gid, t3.uid;
EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.gid = t3.uid order by t1.gid,t3.skr;

# The following ORDER BY can't be optimimized
EXPLAIN SELECT t1.gid, t2.sid, t3.uid from t2, t1, t3 where t2.gid = t1.gid and t2.uid = t3.uid order by t3.uid, t1.gid;
EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.gid = t3.uid order by t3.skr,t1.gid;
EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.skr = t3.uid order by t1.gid,t3.skr;
drop table t1,t2,t3;
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#
# Test of bug when doing an ORDER BY with const items
#

CREATE TABLE t1 (
  `titre` char(80) NOT NULL default '',
  `numeropost` mediumint(8) unsigned NOT NULL auto_increment,
  `date` datetime NOT NULL default '0000-00-00 00:00:00',
  `auteur` char(35) NOT NULL default '',
  `icone` tinyint(2) unsigned NOT NULL default '0',
  `lastauteur` char(35) NOT NULL default '',
  `nbrep` smallint(6) unsigned NOT NULL default '0',
  `dest` char(35) NOT NULL default '',
  `lu` tinyint(1) unsigned NOT NULL default '0',
  `vue` mediumint(8) unsigned NOT NULL default '0',
  `ludest` tinyint(1) unsigned NOT NULL default '0',
  `ouvert` tinyint(1) unsigned NOT NULL default '1',
  PRIMARY KEY  (`numeropost`),
  KEY `date` (`date`),
  KEY `dest` (`dest`,`ludest`),
  KEY `auteur` (`auteur`,`lu`),
  KEY `auteur_2` (`auteur`,`date`),
  KEY `dest_2` (`dest`,`date`)
) CHECKSUM=1;

CREATE TABLE t2 (
  `numeropost` mediumint(8) unsigned NOT NULL default '0',
  `pseudo` char(35) NOT NULL default '',
  PRIMARY KEY  (`numeropost`,`pseudo`),
  KEY `pseudo` (`pseudo`)
);

INSERT INTO t1 (titre,auteur,dest) VALUES ('test','joce','bug');
INSERT INTO t2 (numeropost,pseudo) VALUES (1,'joce'),(1,'bug');
SELECT titre,t1.numeropost,auteur,icone,nbrep,0,date,vue,ouvert,lastauteur,dest FROM t2 LEFT JOIN t1 USING(numeropost) WHERE t2.pseudo='joce' ORDER BY date DESC LIMIT 0,30;
SELECT titre,t1.numeropost,auteur,icone,nbrep,'0',date,vue,ouvert,lastauteur,dest FROM t2 LEFT JOIN t1 USING(numeropost) WHERE t2.pseudo='joce' ORDER BY date DESC LIMIT 0,30;
drop table t1,t2;