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mariadb/mysql-test/r/order_by.result
unknown f16887c59c Merge with 4.0.16 
BitKeeper/etc/ignore:
  auto-union
BitKeeper/etc/logging_ok:
  auto-union
BitKeeper/deleted/.del-mysqldump.result:
  Delete: mysql-test/r/mysqldump.result
BitKeeper/deleted/.del-mysqldump.test:
  Delete: mysql-test/t/mysqldump.test
BitKeeper/deleted/.del-compile-netware-max:
  Delete: netware/BUILD/compile-netware-max
BitKeeper/deleted/.del-compile-netware-max-debug:
  Delete: netware/BUILD/compile-netware-max-debug
BitKeeper/deleted/.del-compile-netware-src:
  Delete: netware/BUILD/compile-netware-src
BitKeeper/deleted/.del-knetware.imp:
  Delete: netware/BUILD/knetware.imp
BUILD/compile-pentium-valgrind-max:
  Auto merged
BitKeeper/deleted/.del-mini_client.cc~8677895ec8169183:
  Auto merged
BitKeeper/deleted/.del-mysql_fix_privilege_tables.sql:
  Auto merged
BitKeeper/deleted/.del-openssl.imp:
  Delete: netware/BUILD/openssl.imp
acinclude.m4:
  Auto merged
SSL/cacert.pem:
  Auto merged
SSL/client-cert.pem:
  Auto merged
SSL/server-cert.pem:
  Auto merged
client/mysqlbinlog.cc:
  Auto merged
extra/resolveip.c:
  Auto merged
heap/hp_test2.c:
  Auto merged
include/my_global.h:
  Auto merged
innobase/row/row0mysql.c:
  Auto merged
innobase/row/row0sel.c:
  Auto merged
libmysql/libmysql.def:
  Auto merged
libmysqld/examples/Makefile.am:
  Auto merged
myisam/mi_check.c:
  Auto merged
myisam/mi_test2.c:
  Auto merged
myisam/myisamdef.h:
  Auto merged
mysql-test/r/fulltext_multi.result:
  Auto merged
mysql-test/r/fulltext_order_by.result:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/r/user_var.result:
  Auto merged
mysql-test/std_data/rpl_loaddata2.dat:
  Auto merged
mysql-test/t/rpl_loaddata.test:
  Auto merged
mysql-test/t/select.test:
  Auto merged
mysql-test/t/user_var.test:
  Auto merged
mysys/mf_dirname.c:
  Auto merged
scripts/make_win_src_distribution.sh:
  Auto merged
sql/des_key_file.cc:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/repl_failsafe.cc:
  Auto merged
sql/slave.h:
  Auto merged
sql-bench/crash-me.sh:
  Auto merged
sql-bench/server-cfg.sh:
  Auto merged
sql-bench/test-insert.sh:
  Auto merged
sql-bench/test-transactions.sh:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_load.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
support-files/mysql.server.sh:
  Auto merged
client/mysqltest.c:
  Merge with 4.0.16
  Changed version number to '2.0' to avoid confusion with version numbering in 3.23
mysql-test/r/distinct.result:
  Updated results for merge
mysql-test/r/insert.result:
  Updated results for merge
mysql-test/r/insert_select.result:
  Updated results for merge
mysql-test/r/join_outer.result:
  Updated results for merge
mysql-test/r/mix_innodb_myisam_binlog.result:
  Updated results for merge
mysql-test/r/order_by.result:
  Updated results for merge
mysql-test/r/rpl000009.result:
  Updated results for merge
mysql-test/r/rpl_loaddata.result:
  Updated results for merge
mysql-test/r/rpl_log.result:
  Updated results for merge
mysql-test/r/select_safe.result:
  Updated results for merge
scripts/mysql_install_db.sh:
  Change -eq to =
BitKeeper/deleted/.del-ins000001.test~2428ee5c9b1bc483:
  dummy
2003-10-07 15:42:26 +03:00

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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 (
id int(6) NOT NULL auto_increment,
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)
);
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,'Créer 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;
id idservice ordre description
2 1 10 Emettre un appel d'offres
2 3 40000 Créer une fiche de client
2 4 40010 Modifier des clients
2 5 40020 Effacer des clients
2 6 51050 Ajouter un service
2 7 51060 Liste des t2
drop table t1,t2;
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;
name
Allan Larsson
David Axmark
Michael Widenius
select concat(last," ",first) as name from t1 order by name;
name
Axmark David
Larsson Allan
Widenius Michael
drop table t1;
create table t1 (i int);
insert into t1 values(1),(2),(1),(2),(1),(2),(3);
select distinct i from t1;
i
1
2
3
select distinct i from t1 order by rand(5);
i
1
3
2
select distinct i from t1 order by i desc;
i
3
2
1
select distinct i from t1 order by 1-i;
i
3
2
1
select distinct i from t1 order by mod(i,2),i;
i
2
1
3
drop table t1;
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;
id col1 col2
4 1 1
3 1 2
5 1 4
2 2 1
1 2 2
6 2 3
8 2 4
7 3 1
select col1 from t1 order by id;
col1
2
2
1
1
1
2
3
2
select col1 as id from t1 order by t1.id;
id
1
1
1
2
2
2
2
3
select concat(col1) as id from t1 order by t1.id;
id
2
2
1
1
1
2
3
2
drop table t1;
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;
test
1
2
3
7
drop table t1;
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;
a b if(b = 1,i,if(b = 2,v,''))
1 1 50
2 1 25
3 2 123 Park Place
4 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
ORDER BY a;
a b if(b = 1,i,if(b = 2,v,''))
1 1 50
2 1 25
3 2 123 Park Place
4 2 453 Boardwalk
drop table t1,t2,t3;
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;
DateOfAction TransactionID
1999-07-18 486
1999-07-19 87
1999-07-19 89
1999-07-19 92
1999-07-19 94
1999-07-27 828
1999-07-27 832
1999-07-27 834
1999-07-27 840
2000-03-27 490
2000-03-28 753
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;
DateOfAction TransactionID
1999-07-19 87
1999-07-19 89
1999-07-19 92
1999-07-19 94
1999-07-18 486
2000-03-27 490
2000-03-28 753
1999-07-27 828
1999-07-27 832
1999-07-27 834
1999-07-27 840
drop table t1,t2,t3;
CREATE TABLE t1 (
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;
insert into t1 (member_id) values (1),(2),(3);
select member_id, nickname, voornaam FROM t1
ORDER by lastchange_datum DESC LIMIT 2;
member_id nickname voornaam
1
2
drop table t1;
create table t1 (a int not null, b int, c varchar(10), key (a, b, c));
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;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 20 NULL 2 Using where; Using index
select * from t1 where (a = 1 and b is null and c = 'b') or (a > 2) order by a desc;
a b c
1 NULL b
explain select * from t1 where a >= 1 and a < 3 order by a desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 4 NULL 10 Using where; Using index
select * from t1 where a >= 1 and a < 3 order by a desc;
a b c
2 3 c
2 2 b
2 2 a
2 1 b
2 1 a
1 3 b
1 1 b
1 1 b
1 1 NULL
1 NULL b
1 NULL NULL
explain select * from t1 where a = 1 order by a desc, b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref a a 4 const 5 Using where; Using index
select * from t1 where a = 1 order by a desc, b desc;
a b c
1 3 b
1 1 b
1 1 b
1 1 NULL
1 NULL b
1 NULL NULL
explain select * from t1 where a = 1 and b is null order by a desc, b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref a a 9 const,const 2 Using where; Using index; Using filesort
select * from t1 where a = 1 and b is null order by a desc, b desc;
a b c
1 NULL NULL
1 NULL b
explain select * from t1 where a >= 1 and a < 3 and b >0 order by a desc,b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 9 NULL 8 Using where; Using index
explain select * from t1 where a = 2 and b >0 order by a desc,b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 9 NULL 5 Using where; Using index
explain select * from t1 where a = 2 and b is null order by a desc,b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref a a 9 const,const 1 Using where; Using index; Using filesort
explain select * from t1 where a = 2 and (b is null or b > 0) order by a
desc,b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 9 NULL 6 Using where; Using index
explain select * from t1 where a = 2 and b > 0 order by a desc,b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 9 NULL 5 Using where; Using index
explain select * from t1 where a = 2 and b < 2 order by a desc,b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 9 NULL 2 Using where; Using index
explain select * from t1 where a = 1 order by b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref a a 4 const 5 Using where; Using index
select * from t1 where a = 1 order by b desc;
a b c
1 3 b
1 1 b
1 1 b
1 1 NULL
1 NULL b
1 NULL NULL
alter table t1 modify b int not null, modify c varchar(10) not null;
Warnings:
Warning 1264 Data truncated for column 'b' at row 1
Warning 1264 Data truncated for column 'c' at row 1
Warning 1264 Data truncated for column 'b' at row 2
Warning 1264 Data truncated for column 'c' at row 3
explain select * from t1 order by a, b, c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL a 18 NULL 11 Using index
select * from t1 order by a, b, c;
a b c
1 0
1 0 b
1 1
1 1 b
1 1 b
1 3 b
2 1 a
2 1 b
2 2 a
2 2 b
2 3 c
explain select * from t1 order by a desc, b desc, c desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL a 18 NULL 11 Using index
select * from t1 order by a desc, b desc, c desc;
a b c
2 3 c
2 2 b
2 2 a
2 1 b
2 1 a
1 3 b
1 1 b
1 1 b
1 1
1 0 b
1 0
explain select * from t1 where (a = 1 and b = 1 and c = 'b') or (a > 2) order by a desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 18 NULL 3 Using where; Using index
select * from t1 where (a = 1 and b = 1 and c = 'b') or (a > 2) order by a desc;
a b c
1 1 b
1 1 b
explain select * from t1 where a < 2 and b <= 1 order by a desc, b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 4 NULL 6 Using where; Using index
select * from t1 where a < 2 and b <= 1 order by a desc, b desc;
a b c
1 1 b
1 1 b
1 1
1 0 b
1 0
select count(*) from t1 where a < 5 and b > 0;
count(*)
9
select * from t1 where a < 5 and b > 0 order by a desc,b desc;
a b c
2 3 c
2 2 b
2 2 a
2 1 b
2 1 a
1 3 b
1 1 b
1 1 b
1 1
explain select * from t1 where a between 1 and 3 and b <= 1 order by a desc, b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 8 NULL 10 Using where; Using index
select * from t1 where a between 1 and 3 and b <= 1 order by a desc, b desc;
a b c
2 1 b
2 1 a
1 1 b
1 1 b
1 1
1 0 b
1 0
explain select * from t1 where a between 0 and 1 order by a desc, b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 4 NULL 5 Using where; Using index
select * from t1 where a between 0 and 1 order by a desc, b desc;
a b c
1 3 b
1 1 b
1 1 b
1 1
1 0 b
1 0
drop table t1;
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;
gid sid uid
104620 5 15
103867 5 27
103962 5 27
104619 5 75
104505 5 117
103853 5 250
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;
gid sid uid
104620 5 15
103867 5 27
103962 5 27
104619 5 75
104505 5 117
103853 5 250
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;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index PRIMARY PRIMARY 4 NULL 6 Using index
1 SIMPLE t2 eq_ref PRIMARY,uid PRIMARY 4 test.t1.gid 1
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 2 test.t2.uid 1 Using where; Using index
EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.gid = t3.uid order by t1.gid,t3.skr;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index PRIMARY PRIMARY 4 NULL 6 Using index
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 2 test.t1.gid 1 Using where
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;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index PRIMARY PRIMARY 4 NULL 6 Using index; Using temporary; Using filesort
1 SIMPLE t2 eq_ref PRIMARY,uid PRIMARY 4 test.t1.gid 1
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 2 test.t2.uid 1 Using where; Using index
EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.gid = t3.uid order by t3.skr,t1.gid;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 ALL PRIMARY NULL NULL NULL 6 Using temporary; Using filesort
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t3.uid 1 Using where
EXPLAIN SELECT t1.gid, t3.uid from t1, t3 where t1.skr = t3.uid order by t1.gid,t3.skr;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 2 test.t1.skr 1 Using where
drop table t1,t2,t3;
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;
titre numeropost auteur icone nbrep 0 date vue ouvert lastauteur dest
test 1 joce 0 0 0 0000-00-00 00:00:00 0 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;
titre numeropost auteur icone nbrep 0 date vue ouvert lastauteur dest
test 1 joce 0 0 0 0000-00-00 00:00:00 0 1 bug
drop table t1,t2;
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (1, 2);
INSERT INTO t1 VALUES (3, 4);
INSERT INTO t1 VALUES (5, NULL);
SELECT * FROM t1 ORDER BY b;
a b
5 NULL
1 2
3 4
SELECT * FROM t1 ORDER BY b DESC;
a b
3 4
1 2
5 NULL
SELECT * FROM t1 ORDER BY (a + b);
a b
5 NULL
1 2
3 4
SELECT * FROM t1 ORDER BY (a + b) DESC;
a b
3 4
1 2
5 NULL
DROP TABLE t1;
CREATE TABLE t1 (
FieldKey varchar(36) NOT NULL default '',
LongVal bigint(20) default NULL,
StringVal mediumtext,
KEY FieldKey (FieldKey),
KEY LongField (FieldKey,LongVal),
KEY StringField (FieldKey,StringVal(32))
);
INSERT INTO t1 VALUES ('0',3,'0'),('0',2,'1'),('0',1,'2'),('1',2,'1'),('1',1,'3'), ('1',0,'2'),('2',3,'0'),('2',2,'1'),('2',1,'2'),('2',3,'0'),('2',2,'1'),('2',1,'2'),('3',2,'1'),('3',1,'2'),('3','3','3');
EXPLAIN SELECT * FROM t1 WHERE FieldKey = '1' ORDER BY LongVal;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref FieldKey,LongField,StringField LongField 36 const 3 Using where
SELECT * FROM t1 WHERE FieldKey = '1' ORDER BY LongVal;
FieldKey LongVal StringVal
1 0 2
1 1 3
1 2 1
EXPLAIN SELECT * FROM t1 WHERE FieldKey > '2' ORDER BY LongVal;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range FieldKey,LongField,StringField FieldKey 36 NULL 4 Using where; Using filesort
SELECT * FROM t1 WHERE FieldKey > '2' ORDER BY LongVal;
FieldKey LongVal StringVal
3 1 2
3 2 1
3 3 3
EXPLAIN SELECT * FROM t1 WHERE FieldKey > '2' ORDER BY FieldKey, LongVal;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range FieldKey,LongField,StringField LongField 36 NULL 4 Using where
SELECT * FROM t1 WHERE FieldKey > '2' ORDER BY FieldKey, LongVal;
FieldKey LongVal StringVal
3 1 2
3 2 1
3 3 3
DROP TABLE t1;
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