|
1
by brian
clean slate |
1 |
drop table if exists t1,t2,t3; |
2 |
SELECT 1 FROM (SELECT 1) as a GROUP BY SUM(1); |
|
3 |
ERROR HY000: Invalid use of group function |
|
4 |
CREATE TABLE t1 ( |
|
5 |
spID int(10) unsigned, |
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6 |
userID int(10) unsigned, |
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7 |
score smallint(5) unsigned, |
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8 |
lsg char(40), |
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9 |
date date |
|
10 |
);
|
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11 |
INSERT INTO t1 VALUES (1,1,1,'','0000-00-00'); |
|
12 |
INSERT INTO t1 VALUES (2,2,2,'','0000-00-00'); |
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13 |
INSERT INTO t1 VALUES (2,1,1,'','0000-00-00'); |
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14 |
INSERT INTO t1 VALUES (3,3,3,'','0000-00-00'); |
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15 |
CREATE TABLE t2 ( |
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16 |
userID int(10) unsigned NOT NULL auto_increment, |
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17 |
niName char(15), |
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18 |
passwd char(8), |
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19 |
mail char(50), |
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20 |
isAukt enum('N','Y') DEFAULT 'N', |
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21 |
vName char(30), |
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22 |
nName char(40), |
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23 |
adr char(60), |
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24 |
plz char(5), |
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25 |
ort char(35), |
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26 |
land char(20), |
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27 |
PRIMARY KEY (userID) |
|
28 |
);
|
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29 |
INSERT INTO t2 VALUES (1,'name','pass','mail','Y','v','n','adr','1','1','1'); |
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30 |
INSERT INTO t2 VALUES (2,'name','pass','mail','Y','v','n','adr','1','1','1'); |
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31 |
INSERT INTO t2 VALUES (3,'name','pass','mail','Y','v','n','adr','1','1','1'); |
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32 |
INSERT INTO t2 VALUES (4,'name','pass','mail','Y','v','n','adr','1','1','1'); |
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33 |
INSERT INTO t2 VALUES (5,'name','pass','mail','Y','v','n','adr','1','1','1'); |
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34 |
SELECT t2.userid, MIN(t1.score) FROM t1, t2 WHERE t1.userID=t2.userID GROUP BY t2.userid; |
|
35 |
userid MIN(t1.score) |
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36 |
1 1 |
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37 |
2 2 |
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38 |
3 3 |
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39 |
SELECT t2.userid, MIN(t1.score) FROM t1, t2 WHERE t1.userID=t2.userID GROUP BY t2.userid ORDER BY NULL; |
|
40 |
userid MIN(t1.score) |
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41 |
1 1 |
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42 |
2 2 |
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43 |
3 3 |
|
44 |
SELECT t2.userid, MIN(t1.score) FROM t1, t2 WHERE t1.userID=t2.userID AND t1.spID=2 GROUP BY t2.userid; |
|
45 |
userid MIN(t1.score) |
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46 |
1 1 |
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47 |
2 2 |
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48 |
SELECT t2.userid, MIN(t1.score+0.0) FROM t1, t2 WHERE t1.userID=t2.userID AND t1.spID=2 GROUP BY t2.userid; |
|
49 |
userid MIN(t1.score+0.0) |
|
50 |
1 1.0 |
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51 |
2 2.0 |
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52 |
SELECT t2.userid, MIN(t1.score+0.0) FROM t1, t2 WHERE t1.userID=t2.userID AND t1.spID=2 GROUP BY t2.userid ORDER BY NULL; |
|
53 |
userid MIN(t1.score+0.0) |
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54 |
2 2.0 |
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55 |
1 1.0 |
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56 |
EXPLAIN SELECT t2.userid, MIN(t1.score+0.0) FROM t1, t2 WHERE t1.userID=t2.userID AND t1.spID=2 GROUP BY t2.userid ORDER BY NULL; |
|
57 |
id select_type table type possible_keys key key_len ref rows Extra |
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58 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where; Using temporary |
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59 |
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.userID 1 Using index |
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60 |
drop table t1,t2; |
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61 |
CREATE TABLE t1 ( |
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62 |
PID int(10) unsigned NOT NULL auto_increment, |
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63 |
payDate date DEFAULT '0000-00-00' NOT NULL, |
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64 |
recDate datetime DEFAULT '0000-00-00 00:00:00' NOT NULL, |
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65 |
URID int(10) unsigned DEFAULT '0' NOT NULL, |
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66 |
CRID int(10) unsigned DEFAULT '0' NOT NULL, |
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67 |
amount int(10) unsigned DEFAULT '0' NOT NULL, |
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68 |
operator int(10) unsigned, |
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69 |
method enum('unknown','cash','dealer','check','card','lazy','delayed','test') DEFAULT 'unknown' NOT NULL, |
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70 |
DIID int(10) unsigned, |
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71 |
reason char(1) binary DEFAULT '' NOT NULL, |
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72 |
code_id int(10) unsigned, |
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73 |
qty mediumint(8) unsigned DEFAULT '0' NOT NULL, |
|
74 |
PRIMARY KEY (PID), |
|
75 |
KEY URID (URID), |
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76 |
KEY reason (reason), |
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77 |
KEY method (method), |
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78 |
KEY payDate (payDate) |
|
79 |
);
|
|
80 |
INSERT INTO t1 VALUES (1,'1970-01-01','1997-10-17 00:00:00',2529,1,21000,11886,'check',0,'F',16200,6); |
|
81 |
SELECT COUNT(P.URID),SUM(P.amount),P.method, MIN(PP.recdate+0) > 19980501000000 AS IsNew FROM t1 AS P JOIN t1 as PP WHERE P.URID = PP.URID GROUP BY method,IsNew; |
|
82 |
ERROR 42000: Can't group on 'IsNew' |
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83 |
drop table t1; |
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84 |
CREATE TABLE t1 ( |
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85 |
cid mediumint(9) NOT NULL auto_increment, |
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86 |
firstname varchar(32) DEFAULT '' NOT NULL, |
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87 |
surname varchar(32) DEFAULT '' NOT NULL, |
|
88 |
PRIMARY KEY (cid) |
|
89 |
);
|
|
90 |
INSERT INTO t1 VALUES (1,'That','Guy'); |
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91 |
INSERT INTO t1 VALUES (2,'Another','Gent'); |
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92 |
CREATE TABLE t2 ( |
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93 |
call_id mediumint(8) NOT NULL auto_increment, |
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94 |
contact_id mediumint(8) DEFAULT '0' NOT NULL, |
|
95 |
PRIMARY KEY (call_id), |
|
96 |
KEY contact_id (contact_id) |
|
97 |
);
|
|
98 |
lock tables t1 read,t2 write; |
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99 |
INSERT INTO t2 VALUES (10,2); |
|
100 |
INSERT INTO t2 VALUES (18,2); |
|
101 |
INSERT INTO t2 VALUES (62,2); |
|
102 |
INSERT INTO t2 VALUES (91,2); |
|
103 |
INSERT INTO t2 VALUES (92,2); |
|
104 |
SELECT cid, CONCAT(firstname, ' ', surname), COUNT(call_id) FROM t1 LEFT JOIN t2 ON cid=contact_id WHERE firstname like '%foo%' GROUP BY cid; |
|
105 |
cid CONCAT(firstname, ' ', surname) COUNT(call_id) |
|
106 |
SELECT cid, CONCAT(firstname, ' ', surname), COUNT(call_id) FROM t1 LEFT JOIN t2 ON cid=contact_id WHERE firstname like '%foo%' GROUP BY cid ORDER BY NULL; |
|
107 |
cid CONCAT(firstname, ' ', surname) COUNT(call_id) |
|
108 |
SELECT HIGH_PRIORITY cid, CONCAT(firstname, ' ', surname), COUNT(call_id) FROM t1 LEFT JOIN t2 ON cid=contact_id WHERE firstname like '%foo%' GROUP BY cid ORDER BY surname, firstname; |
|
109 |
cid CONCAT(firstname, ' ', surname) COUNT(call_id) |
|
110 |
drop table t2; |
|
111 |
unlock tables; |
|
112 |
drop table t1; |
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113 |
CREATE TABLE t1 ( |
|
114 |
bug_id mediumint(9) NOT NULL auto_increment, |
|
115 |
groupset bigint(20) DEFAULT '0' NOT NULL, |
|
116 |
assigned_to mediumint(9) DEFAULT '0' NOT NULL, |
|
117 |
bug_file_loc text, |
|
118 |
bug_severity enum('blocker','critical','major','normal','minor','trivial','enhancement') DEFAULT 'blocker' NOT NULL, |
|
119 |
bug_status enum('','NEW','ASSIGNED','REOPENED','RESOLVED','VERIFIED','CLOSED') DEFAULT 'NEW' NOT NULL, |
|
120 |
creation_ts datetime DEFAULT '0000-00-00 00:00:00' NOT NULL, |
|
121 |
delta_ts timestamp, |
|
122 |
short_desc mediumtext, |
|
123 |
long_desc mediumtext, |
|
124 |
op_sys enum('All','Windows 3.1','Windows 95','Windows 98','Windows NT','Windows 2000','Linux','other') DEFAULT 'All' NOT NULL, |
|
125 |
priority enum('P1','P2','P3','P4','P5') DEFAULT 'P1' NOT NULL, |
|
126 |
product varchar(64) DEFAULT '' NOT NULL, |
|
127 |
rep_platform enum('All','PC','VTD-8','Other'), |
|
128 |
reporter mediumint(9) DEFAULT '0' NOT NULL, |
|
129 |
version varchar(16) DEFAULT '' NOT NULL, |
|
130 |
component varchar(50) DEFAULT '' NOT NULL, |
|
131 |
resolution enum('','FIXED','INVALID','WONTFIX','LATER','REMIND','DUPLICATE','WORKSFORME') DEFAULT '' NOT NULL, |
|
132 |
target_milestone varchar(20) DEFAULT '' NOT NULL, |
|
133 |
qa_contact mediumint(9) DEFAULT '0' NOT NULL, |
|
134 |
status_whiteboard mediumtext NOT NULL, |
|
135 |
votes mediumint(9) DEFAULT '0' NOT NULL, |
|
136 |
PRIMARY KEY (bug_id), |
|
137 |
KEY assigned_to (assigned_to), |
|
138 |
KEY creation_ts (creation_ts), |
|
139 |
KEY delta_ts (delta_ts), |
|
140 |
KEY bug_severity (bug_severity), |
|
141 |
KEY bug_status (bug_status), |
|
142 |
KEY op_sys (op_sys), |
|
143 |
KEY priority (priority), |
|
144 |
KEY product (product), |
|
145 |
KEY reporter (reporter), |
|
146 |
KEY version (version), |
|
147 |
KEY component (component), |
|
148 |
KEY resolution (resolution), |
|
149 |
KEY target_milestone (target_milestone), |
|
150 |
KEY qa_contact (qa_contact), |
|
151 |
KEY votes (votes) |
|
152 |
);
|
|
153 |
INSERT INTO t1 VALUES (1,0,0,'','normal','','2000-02-10 09:25:12',20000321114747,'','','Linux','P1','TestProduct','PC',3,'other','TestComponent','','M1',0,'',0); |
|
154 |
INSERT INTO t1 VALUES (9,0,0,'','enhancement','','2000-03-10 11:49:36',20000321114747,'','','All','P5','AAAAA','PC',3,'2.00 CD - Pre','BBBBBBBBBBBBB - conversion','','',0,'',0); |
|
155 |
INSERT INTO t1 VALUES (10,0,0,'','enhancement','','2000-03-10 18:10:16',20000321114747,'','','All','P4','AAAAA','PC',3,'2.00 CD - Pre','BBBBBBBBBBBBB - conversion','','',0,'',0); |
|
156 |
INSERT INTO t1 VALUES (7,0,0,'','critical','','2000-03-09 10:50:21',20000321114747,'','','All','P1','AAAAA','PC',3,'2.00 CD - Pre','BBBBBBBBBBBBB - generic','','',0,'',0); |
|
157 |
INSERT INTO t1 VALUES (6,0,0,'','normal','','2000-03-09 10:42:44',20000321114747,'','','All','P2','AAAAA','PC',3,'2.00 CD - Pre','kkkkkkkkkkk lllllllllll','','',0,'',0); |
|
158 |
INSERT INTO t1 VALUES (8,0,0,'','major','','2000-03-09 11:32:14',20000321114747,'','','All','P3','AAAAA','PC',3,'2.00 CD - Pre','kkkkkkkkkkk lllllllllll','','',0,'',0); |
|
159 |
INSERT INTO t1 VALUES (5,0,0,'','enhancement','','2000-03-09 10:38:59',20000321114747,'','','All','P5','CCC/CCCCCC','PC',5,'7.00','Administration','','',0,'',0); |
|
160 |
INSERT INTO t1 VALUES (4,0,0,'','normal','','2000-03-08 18:32:14',20000321114747,'','','other','P2','TestProduct','Other',3,'other','TestComponent2','','',0,'',0); |
|
161 |
INSERT INTO t1 VALUES (3,0,0,'','normal','','2000-03-08 18:30:52',20000321114747,'','','other','P2','TestProduct','Other',3,'other','TestComponent','','',0,'',0); |
|
162 |
INSERT INTO t1 VALUES (2,0,0,'','enhancement','','2000-03-08 18:24:51',20000321114747,'','','All','P2','TestProduct','Other',4,'other','TestComponent2','','',0,'',0); |
|
163 |
INSERT INTO t1 VALUES (11,0,0,'','blocker','','2000-03-13 09:43:41',20000321114747,'','','All','P2','CCC/CCCCCC','PC',5,'7.00','DDDDDDDDD','','',0,'',0); |
|
164 |
INSERT INTO t1 VALUES (12,0,0,'','normal','','2000-03-13 16:14:31',20000321114747,'','','All','P2','AAAAA','PC',3,'2.00 CD - Pre','kkkkkkkkkkk lllllllllll','','',0,'',0); |
|
165 |
INSERT INTO t1 VALUES (13,0,0,'','normal','','2000-03-15 16:20:44',20000321114747,'','','other','P2','TestProduct','Other',3,'other','TestComponent','','',0,'',0); |
|
166 |
INSERT INTO t1 VALUES (14,0,0,'','blocker','','2000-03-15 18:13:47',20000321114747,'','','All','P1','AAAAA','PC',3,'2.00 CD - Pre','BBBBBBBBBBBBB - generic','','',0,'',0); |
|
167 |
INSERT INTO t1 VALUES (15,0,0,'','minor','','2000-03-16 18:03:28',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','DDDDDDDDD','','',0,'',0); |
|
168 |
INSERT INTO t1 VALUES (16,0,0,'','normal','','2000-03-16 18:33:41',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','Administration','','',0,'',0); |
|
169 |
INSERT INTO t1 VALUES (17,0,0,'','normal','','2000-03-16 18:34:18',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','Administration','','',0,'',0); |
|
170 |
INSERT INTO t1 VALUES (18,0,0,'','normal','','2000-03-16 18:34:56',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','Administration','','',0,'',0); |
|
171 |
INSERT INTO t1 VALUES (19,0,0,'','enhancement','','2000-03-16 18:35:34',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','Administration','','',0,'',0); |
|
172 |
INSERT INTO t1 VALUES (20,0,0,'','enhancement','','2000-03-16 18:36:23',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','Administration','','',0,'',0); |
|
173 |
INSERT INTO t1 VALUES (21,0,0,'','enhancement','','2000-03-16 18:37:23',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','Administration','','',0,'',0); |
|
174 |
INSERT INTO t1 VALUES (22,0,0,'','enhancement','','2000-03-16 18:38:16',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','Administration','','',0,'',0); |
|
175 |
INSERT INTO t1 VALUES (23,0,0,'','normal','','2000-03-16 18:58:12',20000321114747,'','','All','P2','CCC/CCCCCC','Other',5,'7.00','DDDDDDDDD','','',0,'',0); |
|
176 |
INSERT INTO t1 VALUES (24,0,0,'','normal','','2000-03-17 11:08:10',20000321114747,'','','All','P2','AAAAAAAA-AAA','PC',3,'2.8','Web Interface','','',0,'',0); |
|
177 |
INSERT INTO t1 VALUES (25,0,0,'','normal','','2000-03-17 11:10:45',20000321114747,'','','All','P2','AAAAAAAA-AAA','PC',3,'2.8','Web Interface','','',0,'',0); |
|
178 |
INSERT INTO t1 VALUES (26,0,0,'','normal','','2000-03-17 11:15:47',20000321114747,'','','All','P2','AAAAAAAA-AAA','PC',3,'2.8','Web Interface','','',0,'',0); |
|
179 |
INSERT INTO t1 VALUES (27,0,0,'','normal','','2000-03-17 17:45:41',20000321114747,'','','All','P2','CCC/CCCCCC','PC',5,'7.00','DDDDDDDDD','','',0,'',0); |
|
180 |
INSERT INTO t1 VALUES (28,0,0,'','normal','','2000-03-20 09:51:45',20000321114747,'','','Windows NT','P2','TestProduct','PC',8,'other','TestComponent','','',0,'',0); |
|
181 |
INSERT INTO t1 VALUES (29,0,0,'','normal','','2000-03-20 11:15:09',20000321114747,'','','All','P5','AAAAAAAA-AAA','PC',3,'2.8','Web Interface','','',0,'',0); |
|
182 |
CREATE TABLE t2 ( |
|
183 |
value tinytext, |
|
184 |
program varchar(64), |
|
185 |
initialowner tinytext NOT NULL, |
|
186 |
initialqacontact tinytext NOT NULL, |
|
187 |
description mediumtext NOT NULL |
|
188 |
);
|
|
189 |
INSERT INTO t2 VALUES ('TestComponent','TestProduct','id0001','',''); |
|
190 |
INSERT INTO t2 VALUES ('BBBBBBBBBBBBB - conversion','AAAAA','id0001','',''); |
|
191 |
INSERT INTO t2 VALUES ('BBBBBBBBBBBBB - generic','AAAAA','id0001','',''); |
|
192 |
INSERT INTO t2 VALUES ('TestComponent2','TestProduct','id0001','',''); |
|
193 |
INSERT INTO t2 VALUES ('BBBBBBBBBBBBB - eeeeeeeee','AAAAA','id0001','',''); |
|
194 |
INSERT INTO t2 VALUES ('kkkkkkkkkkk lllllllllll','AAAAA','id0001','',''); |
|
195 |
INSERT INTO t2 VALUES ('Test Procedures','AAAAA','id0001','',''); |
|
196 |
INSERT INTO t2 VALUES ('Documentation','AAAAA','id0003','',''); |
|
197 |
INSERT INTO t2 VALUES ('DDDDDDDDD','CCC/CCCCCC','id0002','',''); |
|
198 |
INSERT INTO t2 VALUES ('Eeeeeeee Lite','CCC/CCCCCC','id0002','',''); |
|
199 |
INSERT INTO t2 VALUES ('Eeeeeeee Full','CCC/CCCCCC','id0002','',''); |
|
200 |
INSERT INTO t2 VALUES ('Administration','CCC/CCCCCC','id0002','',''); |
|
201 |
INSERT INTO t2 VALUES ('Distribution','CCC/CCCCCC','id0002','',''); |
|
202 |
INSERT INTO t2 VALUES ('Setup','CCC/CCCCCC','id0002','',''); |
|
203 |
INSERT INTO t2 VALUES ('Unspecified','CCC/CCCCCC','id0002','',''); |
|
204 |
INSERT INTO t2 VALUES ('Web Interface','AAAAAAAA-AAA','id0001','',''); |
|
205 |
INSERT INTO t2 VALUES ('Host communication','AAAAA','id0001','',''); |
|
206 |
select value,description,bug_id from t2 left join t1 on t2.program=t1.product and t2.value=t1.component where program="AAAAA"; |
|
207 |
value description bug_id |
|
208 |
BBBBBBBBBBBBB - conversion 9 |
|
209 |
BBBBBBBBBBBBB - conversion 10 |
|
210 |
BBBBBBBBBBBBB - generic 7 |
|
211 |
BBBBBBBBBBBBB - generic 14 |
|
212 |
BBBBBBBBBBBBB - eeeeeeeee NULL |
|
213 |
kkkkkkkkkkk lllllllllll 6 |
|
214 |
kkkkkkkkkkk lllllllllll 8 |
|
215 |
kkkkkkkkkkk lllllllllll 12 |
|
216 |
Test Procedures NULL |
|
217 |
Documentation NULL |
|
218 |
Host communication NULL |
|
219 |
select value,description,COUNT(bug_id) from t2 left join t1 on t2.program=t1.product and t2.value=t1.component where program="AAAAA" group by value; |
|
220 |
value description COUNT(bug_id) |
|
221 |
BBBBBBBBBBBBB - conversion 2 |
|
222 |
BBBBBBBBBBBBB - eeeeeeeee 0 |
|
223 |
BBBBBBBBBBBBB - generic 2 |
|
224 |
Documentation 0 |
|
225 |
Host communication 0 |
|
226 |
kkkkkkkkkkk lllllllllll 3 |
|
227 |
Test Procedures 0 |
|
228 |
select value,description,COUNT(bug_id) from t2 left join t1 on t2.program=t1.product and t2.value=t1.component where program="AAAAA" group by value having COUNT(bug_id) IN (0,2); |
|
229 |
value description COUNT(bug_id) |
|
230 |
BBBBBBBBBBBBB - conversion 2 |
|
231 |
BBBBBBBBBBBBB - eeeeeeeee 0 |
|
232 |
BBBBBBBBBBBBB - generic 2 |
|
233 |
Documentation 0 |
|
234 |
Host communication 0 |
|
235 |
Test Procedures 0 |
|
236 |
drop table t1,t2; |
|
237 |
create table t1 (foo int); |
|
238 |
insert into t1 values (1); |
|
239 |
select 1+1, "a",count(*) from t1 where foo in (2); |
|
240 |
1+1 a count(*) |
|
241 |
2 a 0 |
|
242 |
insert into t1 values (1); |
|
243 |
select 1+1,"a",count(*) from t1 where foo in (2); |
|
244 |
1+1 a count(*) |
|
245 |
2 a 0 |
|
246 |
drop table t1; |
|
247 |
CREATE TABLE t1 ( |
|
248 |
spID int(10) unsigned, |
|
249 |
userID int(10) unsigned, |
|
250 |
score smallint(5) unsigned, |
|
251 |
key (spid), |
|
252 |
key (score) |
|
253 |
);
|
|
254 |
INSERT INTO t1 VALUES (1,1,1),(2,2,2),(2,1,1),(3,3,3),(4,3,3),(5,3,3),(6,3,3),(7,3,3); |
|
255 |
explain select userid,count(*) from t1 group by userid desc; |
|
256 |
id select_type table type possible_keys key key_len ref rows Extra |
|
257 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using temporary; Using filesort |
|
258 |
explain select userid,count(*) from t1 group by userid desc order by null; |
|
259 |
id select_type table type possible_keys key key_len ref rows Extra |
|
260 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using temporary |
|
261 |
select userid,count(*) from t1 group by userid desc; |
|
262 |
userid count(*) |
|
263 |
3 5 |
|
264 |
2 1 |
|
265 |
1 2 |
|
266 |
select userid,count(*) from t1 group by userid desc having (count(*)+1) IN (4,3); |
|
267 |
userid count(*) |
|
268 |
1 2 |
|
269 |
select userid,count(*) from t1 group by userid desc having 3 IN (1,COUNT(*)); |
|
270 |
userid count(*) |
|
271 |
explain select spid,count(*) from t1 where spid between 1 and 2 group by spid desc; |
|
272 |
id select_type table type possible_keys key key_len ref rows Extra |
|
273 |
1 SIMPLE t1 range spID spID 5 NULL 3 Using where; Using index |
|
274 |
explain select spid,count(*) from t1 where spid between 1 and 2 group by spid; |
|
275 |
id select_type table type possible_keys key key_len ref rows Extra |
|
276 |
1 SIMPLE t1 range spID spID 5 NULL 3 Using where; Using index |
|
277 |
explain select spid,count(*) from t1 where spid between 1 and 2 group by spid order by null; |
|
278 |
id select_type table type possible_keys key key_len ref rows Extra |
|
279 |
1 SIMPLE t1 range spID spID 5 NULL 3 Using where; Using index |
|
280 |
select spid,count(*) from t1 where spid between 1 and 2 group by spid; |
|
281 |
spid count(*) |
|
282 |
1 1 |
|
283 |
2 2 |
|
284 |
select spid,count(*) from t1 where spid between 1 and 2 group by spid desc; |
|
285 |
spid count(*) |
|
286 |
2 2 |
|
287 |
1 1 |
|
288 |
explain extended select sql_big_result spid,sum(userid) from t1 group by spid desc; |
|
289 |
id select_type table type possible_keys key key_len ref rows filtered Extra |
|
290 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 100.00 Using filesort |
|
291 |
Warnings: |
|
292 |
Note 1003 select sql_big_result "test"."t1"."spID" AS "spid",sum("test"."t1"."userID") AS "sum(userid)" from "test"."t1" group by "test"."t1"."spID" desc |
|
293 |
explain select sql_big_result spid,sum(userid) from t1 group by spid desc order by null; |
|
294 |
id select_type table type possible_keys key key_len ref rows Extra |
|
295 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using filesort |
|
296 |
select sql_big_result spid,sum(userid) from t1 group by spid desc; |
|
297 |
spid sum(userid) |
|
298 |
7 3 |
|
299 |
6 3 |
|
300 |
5 3 |
|
301 |
4 3 |
|
302 |
3 3 |
|
303 |
2 3 |
|
304 |
1 1 |
|
305 |
explain select sql_big_result score,count(*) from t1 group by score desc; |
|
306 |
id select_type table type possible_keys key key_len ref rows Extra |
|
307 |
1 SIMPLE t1 index NULL score 3 NULL 8 Using index; Using filesort |
|
308 |
explain select sql_big_result score,count(*) from t1 group by score desc order by null; |
|
309 |
id select_type table type possible_keys key key_len ref rows Extra |
|
310 |
1 SIMPLE t1 index NULL score 3 NULL 8 Using index; Using filesort |
|
311 |
select sql_big_result score,count(*) from t1 group by score desc; |
|
312 |
score count(*) |
|
313 |
3 5 |
|
314 |
2 1 |
|
315 |
1 2 |
|
316 |
drop table t1; |
|
317 |
create table t1 (a date default null, b date default null); |
|
318 |
insert t1 values ('1999-10-01','2000-01-10'), ('1997-01-01','1998-10-01'); |
|
319 |
select a,min(b) c,count(distinct rand()) from t1 group by a having c<a + interval 1 day; |
|
320 |
a c count(distinct rand()) |
|
321 |
drop table t1; |
|
322 |
CREATE TABLE t1 (a char(1)); |
|
323 |
INSERT INTO t1 VALUES ('A'),('B'),('A'),('B'),('A'),('B'),(NULL),('a'),('b'),(NULL),('A'),('B'),(NULL); |
|
324 |
SELECT a FROM t1 GROUP BY a; |
|
325 |
a
|
|
326 |
NULL
|
|
327 |
A
|
|
328 |
B
|
|
329 |
SELECT a,count(*) FROM t1 GROUP BY a; |
|
330 |
a count(*) |
|
331 |
NULL 3 |
|
332 |
A 5 |
|
333 |
B 5 |
|
334 |
SELECT a FROM t1 GROUP BY binary a; |
|
335 |
a
|
|
336 |
NULL
|
|
337 |
A
|
|
338 |
B
|
|
339 |
a
|
|
340 |
b
|
|
341 |
SELECT a,count(*) FROM t1 GROUP BY binary a; |
|
342 |
a count(*) |
|
343 |
NULL 3 |
|
344 |
A 4 |
|
345 |
B 4 |
|
346 |
a 1 |
|
347 |
b 1 |
|
348 |
SELECT binary a FROM t1 GROUP BY 1; |
|
349 |
binary a |
|
350 |
NULL
|
|
351 |
A
|
|
352 |
B
|
|
353 |
a
|
|
354 |
b
|
|
355 |
SELECT binary a,count(*) FROM t1 GROUP BY 1; |
|
356 |
binary a count(*) |
|
357 |
NULL 3 |
|
358 |
A 4 |
|
359 |
B 4 |
|
360 |
a 1 |
|
361 |
b 1 |
|
362 |
SET SQL_BIG_TABLES=1; |
|
363 |
SELECT a FROM t1 GROUP BY a; |
|
364 |
a
|
|
365 |
NULL
|
|
366 |
A
|
|
367 |
B
|
|
368 |
SELECT a,count(*) FROM t1 GROUP BY a; |
|
369 |
a count(*) |
|
370 |
NULL 3 |
|
371 |
A 5 |
|
372 |
B 5 |
|
373 |
SELECT a FROM t1 GROUP BY binary a; |
|
374 |
a
|
|
375 |
NULL
|
|
376 |
A
|
|
377 |
B
|
|
378 |
a
|
|
379 |
b
|
|
380 |
SELECT a,count(*) FROM t1 GROUP BY binary a; |
|
381 |
a count(*) |
|
382 |
NULL 3 |
|
383 |
A 4 |
|
384 |
B 4 |
|
385 |
a 1 |
|
386 |
b 1 |
|
387 |
SELECT binary a FROM t1 GROUP BY 1; |
|
388 |
binary a |
|
389 |
NULL
|
|
390 |
A
|
|
391 |
B
|
|
392 |
a
|
|
393 |
b
|
|
394 |
SELECT binary a,count(*) FROM t1 GROUP BY 1; |
|
395 |
binary a count(*) |
|
396 |
NULL 3 |
|
397 |
A 4 |
|
398 |
B 4 |
|
399 |
a 1 |
|
400 |
b 1 |
|
401 |
SET SQL_BIG_TABLES=0; |
|
402 |
drop table t1; |
|
403 |
CREATE TABLE t1 ( |
|
404 |
`a` char(193) default NULL, |
|
405 |
`b` char(63) default NULL |
|
406 |
);
|
|
407 |
INSERT INTO t1 VALUES ('abc','def'),('hij','klm'); |
|
408 |
SELECT CONCAT(a, b) FROM t1 GROUP BY 1; |
|
409 |
CONCAT(a, b) |
|
410 |
abcdef
|
|
411 |
hijklm
|
|
412 |
SELECT CONCAT(a, b),count(*) FROM t1 GROUP BY 1; |
|
413 |
CONCAT(a, b) count(*) |
|
414 |
abcdef 1 |
|
415 |
hijklm 1 |
|
416 |
SELECT CONCAT(a, b),count(distinct a) FROM t1 GROUP BY 1; |
|
417 |
CONCAT(a, b) count(distinct a) |
|
418 |
abcdef 1 |
|
419 |
hijklm 1 |
|
420 |
SELECT 1 FROM t1 GROUP BY CONCAT(a, b); |
|
421 |
1
|
|
422 |
1
|
|
423 |
1
|
|
424 |
INSERT INTO t1 values ('hij','klm'); |
|
425 |
SELECT CONCAT(a, b),count(*) FROM t1 GROUP BY 1; |
|
426 |
CONCAT(a, b) count(*) |
|
427 |
abcdef 1 |
|
428 |
hijklm 2 |
|
429 |
DROP TABLE t1; |
|
430 |
create table t1 (One int unsigned, Two int unsigned, Three int unsigned, Four int unsigned); |
|
431 |
insert into t1 values (1,2,1,4),(1,2,2,4),(1,2,3,4),(1,2,4,4),(1,1,1,4),(1,1,2,4),(1,1,3,4),(1,1,4,4),(1,3,1,4),(1,3,2,4),(1,3,3,4),(1,3,4,4); |
|
432 |
select One, Two, sum(Four) from t1 group by One,Two; |
|
433 |
One Two sum(Four) |
|
434 |
1 1 16 |
|
435 |
1 2 16 |
|
436 |
1 3 16 |
|
437 |
drop table t1; |
|
438 |
create table t1 (id integer primary key not null auto_increment, gender char(1)); |
|
439 |
insert into t1 values (NULL, 'M'), (NULL, 'F'),(NULL, 'F'),(NULL, 'F'),(NULL, 'M'); |
|
440 |
create table t2 (user_id integer not null, date date); |
|
441 |
insert into t2 values (1, '2002-06-09'),(2, '2002-06-09'),(1, '2002-06-09'),(3, '2002-06-09'),(4, '2002-06-09'),(4, '2002-06-09'); |
|
442 |
select u.gender as gender, count(distinct u.id) as dist_count, (count(distinct u.id)/5*100) as percentage from t1 u, t2 l where l.user_id = u.id group by u.gender; |
|
443 |
gender dist_count percentage |
|
444 |
F 3 60.0000 |
|
445 |
M 1 20.0000 |
|
446 |
select u.gender as gender, count(distinct u.id) as dist_count, (count(distinct u.id)/5*100) as percentage from t1 u, t2 l where l.user_id = u.id group by u.gender order by percentage; |
|
447 |
gender dist_count percentage |
|
448 |
M 1 20.0000 |
|
449 |
F 3 60.0000 |
|
450 |
drop table t1,t2; |
|
451 |
CREATE TABLE t1 (ID1 int, ID2 int, ID int NOT NULL AUTO_INCREMENT,PRIMARY KEY(ID |
|
452 |
));
|
|
453 |
insert into t1 values (1,244,NULL),(2,243,NULL),(134,223,NULL),(185,186,NULL); |
|
454 |
select S.ID as xID, S.ID1 as xID1 from t1 as S left join t1 as yS on S.ID1 between yS.ID1 and yS.ID2; |
|
455 |
xID xID1 |
|
456 |
1 1 |
|
457 |
2 2 |
|
458 |
2 2 |
|
459 |
3 134 |
|
460 |
3 134 |
|
461 |
3 134 |
|
462 |
4 185 |
|
463 |
4 185 |
|
464 |
4 185 |
|
465 |
4 185 |
|
466 |
select S.ID as xID, S.ID1 as xID1, repeat('*',count(distinct yS.ID)) as Level from t1 as S left join t1 as yS on S.ID1 between yS.ID1 and yS.ID2 group by xID order by xID1; |
|
467 |
xID xID1 Level |
|
468 |
1 1 * |
|
469 |
2 2 ** |
|
470 |
3 134 *** |
|
471 |
4 185 **** |
|
472 |
drop table t1; |
|
473 |
CREATE TABLE t1 ( |
|
474 |
pid int(11) unsigned NOT NULL default '0', |
|
475 |
c1id int(11) unsigned default NULL, |
|
476 |
c2id int(11) unsigned default NULL, |
|
477 |
value int(11) unsigned NOT NULL default '0', |
|
478 |
UNIQUE KEY pid2 (pid,c1id,c2id), |
|
479 |
UNIQUE KEY pid (pid,value) |
|
480 |
) ENGINE=MyISAM; |
|
481 |
INSERT INTO t1 VALUES (1, 1, NULL, 1),(1, 2, NULL, 2),(1, NULL, 3, 3),(1, 4, NULL, 4),(1, 5, NULL, 5); |
|
482 |
CREATE TABLE t2 ( |
|
483 |
id int(11) unsigned NOT NULL default '0', |
|
484 |
active enum('Yes','No') NOT NULL default 'Yes', |
|
485 |
PRIMARY KEY (id) |
|
486 |
) ENGINE=MyISAM; |
|
487 |
INSERT INTO t2 VALUES (1, 'Yes'),(2, 'No'),(4, 'Yes'),(5, 'No'); |
|
488 |
CREATE TABLE t3 ( |
|
489 |
id int(11) unsigned NOT NULL default '0', |
|
490 |
active enum('Yes','No') NOT NULL default 'Yes', |
|
491 |
PRIMARY KEY (id) |
|
492 |
);
|
|
493 |
INSERT INTO t3 VALUES (3, 'Yes'); |
|
494 |
select * from t1 AS m LEFT JOIN t2 AS c1 ON m.c1id = |
|
495 |
c1.id AND c1.active = 'Yes' LEFT JOIN t3 AS c2 ON m.c2id = c2.id AND |
|
496 |
c2.active = 'Yes' WHERE m.pid=1 AND (c1.id IS NOT NULL OR c2.id IS NOT NULL); |
|
497 |
pid c1id c2id value id active id active |
|
498 |
1 1 NULL 1 1 Yes NULL NULL |
|
499 |
1 NULL 3 3 NULL NULL 3 Yes |
|
500 |
1 4 NULL 4 4 Yes NULL NULL |
|
501 |
select max(value) from t1 AS m LEFT JOIN t2 AS c1 ON |
|
502 |
m.c1id = c1.id AND c1.active = 'Yes' LEFT JOIN t3 AS c2 ON m.c2id = |
|
503 |
c2.id AND c2.active = 'Yes' WHERE m.pid=1 AND (c1.id IS NOT NULL OR c2.id IS |
|
504 |
NOT NULL); |
|
505 |
max(value) |
|
506 |
4
|
|
507 |
drop table t1,t2,t3; |
|
508 |
create table t1 (a blob null); |
|
509 |
insert into t1 values (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(""),(""),(""),("b"); |
|
510 |
select a,count(*) from t1 group by a; |
|
511 |
a count(*) |
|
512 |
NULL 9 |
|
513 |
3
|
|
514 |
b 1 |
|
515 |
set option sql_big_tables=1; |
|
516 |
select a,count(*) from t1 group by a; |
|
517 |
a count(*) |
|
518 |
NULL 9 |
|
519 |
3
|
|
520 |
b 1 |
|
521 |
drop table t1; |
|
522 |
create table t1 (a int not null, b int not null); |
|
523 |
insert into t1 values (1,1),(1,2),(3,1),(3,2),(2,2),(2,1); |
|
524 |
create table t2 (a int not null, b int not null, key(a)); |
|
525 |
insert into t2 values (1,3),(3,1),(2,2),(1,1); |
|
526 |
select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b; |
|
527 |
a b |
|
528 |
1 1 |
|
529 |
1 3 |
|
530 |
2 2 |
|
531 |
3 1 |
|
532 |
select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b ORDER BY NULL; |
|
533 |
a b |
|
534 |
1 3 |
|
535 |
3 1 |
|
536 |
2 2 |
|
537 |
1 1 |
|
538 |
explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b; |
|
539 |
id select_type table type possible_keys key key_len ref rows Extra |
|
540 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort |
|
541 |
1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer |
|
542 |
explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b ORDER BY NULL; |
|
543 |
id select_type table type possible_keys key key_len ref rows Extra |
|
544 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary |
|
545 |
1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer |
|
546 |
drop table t1,t2; |
|
547 |
create table t1 (a int, b int); |
|
548 |
insert into t1 values (1, 4),(10, 40),(1, 4),(10, 43),(1, 4),(10, 41),(1, 4),(10, 43),(1, 4); |
|
549 |
select a, MAX(b), INTERVAL (MAX(b), 1,3,10,30,39,40,50,60,100,1000) from t1 group by a; |
|
550 |
a MAX(b) INTERVAL (MAX(b), 1,3,10,30,39,40,50,60,100,1000) |
|
551 |
1 4 2 |
|
552 |
10 43 6 |
|
553 |
select a, MAX(b), CASE MAX(b) when 4 then 4 when 43 then 43 else 0 end from t1 group by a; |
|
554 |
a MAX(b) CASE MAX(b) when 4 then 4 when 43 then 43 else 0 end |
|
555 |
1 4 4 |
|
556 |
10 43 43 |
|
557 |
select a, MAX(b), FIELD(MAX(b), '43', '4', '5') from t1 group by a; |
|
558 |
a MAX(b) FIELD(MAX(b), '43', '4', '5') |
|
559 |
1 4 2 |
|
560 |
10 43 1 |
|
561 |
select a, MAX(b), CONCAT_WS(MAX(b), '43', '4', '5') from t1 group by a; |
|
562 |
a MAX(b) CONCAT_WS(MAX(b), '43', '4', '5') |
|
563 |
1 4 434445 |
|
564 |
10 43 43434435 |
|
565 |
select a, MAX(b), ELT(MAX(b), 'a', 'b', 'c', 'd', 'e', 'f') from t1 group by a; |
|
566 |
a MAX(b) ELT(MAX(b), 'a', 'b', 'c', 'd', 'e', 'f') |
|
567 |
1 4 d |
|
568 |
10 43 NULL |
|
569 |
select a, MAX(b), MAKE_SET(MAX(b), 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h') from t1 group by a; |
|
570 |
a MAX(b) MAKE_SET(MAX(b), 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h') |
|
571 |
1 4 c |
|
572 |
10 43 a,b,d,f |
|
573 |
drop table t1; |
|
574 |
create table t1 (id int not null, qty int not null); |
|
575 |
insert into t1 values (1,2),(1,3),(2,4),(2,5); |
|
576 |
select id, sum(qty) as sqty, count(qty) as cqty from t1 group by id having sum(qty)>2 and cqty>1; |
|
577 |
id sqty cqty |
|
578 |
1 5 2 |
|
579 |
2 9 2 |
|
580 |
select id, sum(qty) as sqty from t1 group by id having sqty>2 and count(qty)>1; |
|
581 |
id sqty |
|
582 |
1 5 |
|
583 |
2 9 |
|
584 |
select id, sum(qty) as sqty, count(qty) as cqty from t1 group by id having sqty>2 and cqty>1; |
|
585 |
id sqty cqty |
|
586 |
1 5 2 |
|
587 |
2 9 2 |
|
588 |
select id, sum(qty) as sqty, count(qty) as cqty from t1 group by id having sum(qty)>2 and count(qty)>1; |
|
589 |
id sqty cqty |
|
590 |
1 5 2 |
|
591 |
2 9 2 |
|
592 |
select count(*), case interval(qty,2,3,4,5,6,7,8) when -1 then NULL when 0 then "zero" when 1 then "one" when 2 then "two" end as category from t1 group by category; |
|
593 |
count(*) category |
|
594 |
2 NULL |
|
595 |
1 one |
|
596 |
1 two |
|
597 |
select count(*), interval(qty,2,3,4,5,6,7,8) as category from t1 group by category; |
|
598 |
count(*) category |
|
599 |
1 1 |
|
600 |
1 2 |
|
601 |
1 3 |
|
602 |
1 4 |
|
603 |
drop table t1; |
|
604 |
CREATE TABLE t1 ( |
|
605 |
userid int(10) unsigned, |
|
606 |
score smallint(5) unsigned, |
|
607 |
key (score) |
|
608 |
);
|
|
609 |
INSERT INTO t1 VALUES (1,1),(2,2),(1,1),(3,3),(3,3),(3,3),(3,3),(3,3); |
|
610 |
SELECT userid,count(*) FROM t1 GROUP BY userid DESC; |
|
611 |
userid count(*) |
|
612 |
3 5 |
|
613 |
2 1 |
|
614 |
1 2 |
|
615 |
EXPLAIN SELECT userid,count(*) FROM t1 GROUP BY userid DESC; |
|
616 |
id select_type table type possible_keys key key_len ref rows Extra |
|
617 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using temporary; Using filesort |
|
618 |
DROP TABLE t1; |
|
619 |
CREATE TABLE t1 ( |
|
620 |
i int(11) default NULL, |
|
621 |
j int(11) default NULL |
|
622 |
);
|
|
623 |
INSERT INTO t1 VALUES (1,2),(2,3),(4,5),(3,5),(1,5),(23,5); |
|
624 |
SELECT i, COUNT(DISTINCT(i)) FROM t1 GROUP BY j ORDER BY NULL; |
|
625 |
i COUNT(DISTINCT(i)) |
|
626 |
1 1 |
|
627 |
2 1 |
|
628 |
4 4 |
|
629 |
explain SELECT i, COUNT(DISTINCT(i)) FROM t1 GROUP BY j ORDER BY NULL; |
|
630 |
id select_type table type possible_keys key key_len ref rows Extra |
|
631 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using filesort |
|
632 |
DROP TABLE t1; |
|
633 |
create table t1 (a int); |
|
634 |
insert into t1 values(null); |
|
635 |
select min(a) is null from t1; |
|
636 |
min(a) is null |
|
637 |
1
|
|
638 |
select min(a) is null or null from t1; |
|
639 |
min(a) is null or null |
|
640 |
1
|
|
641 |
select 1 and min(a) is null from t1; |
|
642 |
1 and min(a) is null |
|
643 |
1
|
|
644 |
drop table t1; |
|
645 |
create table t1 ( col1 int, col2 int ); |
|
646 |
insert into t1 values (1,1),(1,2),(1,3),(2,1),(2,2); |
|
647 |
select group_concat( distinct col1 ) as alias from t1 |
|
648 |
group by col2 having alias like '%'; |
|
649 |
alias
|
|
650 |
1,2 |
|
651 |
1,2 |
|
652 |
1
|
|
653 |
drop table t1; |
|
654 |
create table t1 (a integer, b integer, c integer); |
|
655 |
insert into t1 (a,b) values (1,2),(1,3),(2,5); |
|
656 |
select a, 0.1*0+1 r2, sum(1) r1 from t1 where a = 1 group by a having r1>1 and r2=1; |
|
657 |
a r2 r1 |
|
658 |
1 1.0 2 |
|
659 |
select a, round(rand(100)*10) r2, sum(1) r1 from t1 where a = 1 group by a having r1>1 and r2<=2; |
|
660 |
a r2 r1 |
|
661 |
1 2 2 |
|
662 |
select a,sum(b) from t1 where a=1 group by c; |
|
663 |
a sum(b) |
|
664 |
1 5 |
|
665 |
select a*sum(b) from t1 where a=1 group by c; |
|
666 |
a*sum(b) |
|
667 |
5
|
|
668 |
select sum(a)*sum(b) from t1 where a=1 group by c; |
|
669 |
sum(a)*sum(b) |
|
670 |
10
|
|
671 |
select a,sum(b) from t1 where a=1 group by c having a=1; |
|
672 |
a sum(b) |
|
673 |
1 5 |
|
674 |
select a as d,sum(b) from t1 where a=1 group by c having d=1; |
|
675 |
d sum(b) |
|
676 |
1 5 |
|
677 |
select sum(a)*sum(b) as d from t1 where a=1 group by c having d > 0; |
|
678 |
d
|
|
679 |
10
|
|
680 |
drop table t1; |
|
681 |
create table t1(a int); |
|
682 |
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(8),(9); |
|
683 |
create table t2 ( |
|
684 |
a int, |
|
685 |
b varchar(200) NOT NULL, |
|
686 |
c varchar(50) NOT NULL, |
|
687 |
d varchar(100) NOT NULL, |
|
688 |
primary key (a,b(132),c,d), |
|
689 |
key a (a,b) |
|
690 |
) charset=utf8; |
|
691 |
insert into t2 select |
|
692 |
x3.a, -- 3 |
|
693 |
concat('val-', x3.a + 3*x4.a), -- 12 |
|
694 |
concat('val-', @a:=x3.a + 3*x4.a + 12*C.a), -- 120 |
|
695 |
concat('val-', @a + 120*D.a) |
|
696 |
from t1 x3, t1 x4, t1 C, t1 D where x3.a < 3 and x4.a < 4 and D.a < 4; |
|
697 |
delete from t2 where a = 2 and b = 'val-2' order by a,b,c,d limit 30; |
|
698 |
explain select c from t2 where a = 2 and b = 'val-2' group by c; |
|
699 |
id select_type table type possible_keys key key_len ref rows Extra |
|
700 |
1 SIMPLE t2 ref PRIMARY,a PRIMARY 534 const,const 6 Using where |
|
701 |
select c from t2 where a = 2 and b = 'val-2' group by c; |
|
702 |
c
|
|
703 |
val-74 |
|
704 |
val-98 |
|
705 |
drop table t1,t2; |
|
706 |
create table t1 (b int4 unsigned not null); |
|
707 |
insert into t1 values(3000000000); |
|
708 |
select * from t1; |
|
709 |
b
|
|
710 |
3000000000
|
|
711 |
select min(b) from t1; |
|
712 |
min(b) |
|
713 |
3000000000
|
|
714 |
drop table t1; |
|
715 |
CREATE TABLE t1 (id int PRIMARY KEY, user_id int, hostname longtext); |
|
716 |
INSERT INTO t1 VALUES |
|
717 |
(1, 7, 'cache-dtc-af05.proxy.aol.com'), |
|
718 |
(2, 3, 'what.ever.com'), |
|
719 |
(3, 7, 'cache-dtc-af05.proxy.aol.com'), |
|
720 |
(4, 7, 'cache-dtc-af05.proxy.aol.com'); |
|
721 |
SELECT hostname, COUNT(DISTINCT user_id) as no FROM t1 |
|
722 |
WHERE hostname LIKE '%aol%' |
|
723 |
GROUP BY hostname; |
|
724 |
hostname no |
|
725 |
cache-dtc-af05.proxy.aol.com 1 |
|
726 |
DROP TABLE t1; |
|
727 |
CREATE TABLE t1 (a int, b int); |
|
728 |
INSERT INTO t1 VALUES (1,2), (1,3); |
|
729 |
SELECT a, b FROM t1 GROUP BY 'const'; |
|
730 |
a b |
|
731 |
1 2 |
|
732 |
SELECT DISTINCT a, b FROM t1 GROUP BY 'const'; |
|
733 |
a b |
|
734 |
1 2 |
|
735 |
DROP TABLE t1; |
|
736 |
CREATE TABLE t1 (id INT, dt DATETIME); |
|
737 |
INSERT INTO t1 VALUES ( 1, '2005-05-01 12:30:00' ); |
|
738 |
INSERT INTO t1 VALUES ( 1, '2005-05-01 12:30:00' ); |
|
739 |
INSERT INTO t1 VALUES ( 1, '2005-05-01 12:30:00' ); |
|
740 |
INSERT INTO t1 VALUES ( 1, '2005-05-01 12:30:00' ); |
|
741 |
SELECT dt DIV 1 AS f, id FROM t1 GROUP BY f; |
|
742 |
f id |
|
743 |
20050501123000 1 |
|
744 |
DROP TABLE t1; |
|
745 |
CREATE TABLE t1 (id varchar(20) NOT NULL); |
|
746 |
INSERT INTO t1 VALUES ('trans1'), ('trans2'); |
|
747 |
CREATE TABLE t2 (id varchar(20) NOT NULL, err_comment blob NOT NULL); |
|
748 |
INSERT INTO t2 VALUES ('trans1', 'a problem'); |
|
749 |
SELECT COUNT(DISTINCT(t1.id)), LEFT(err_comment, 256) AS comment |
|
750 |
FROM t1 LEFT JOIN t2 ON t1.id=t2.id GROUP BY comment; |
|
751 |
COUNT(DISTINCT(t1.id)) comment |
|
752 |
1 NULL |
|
753 |
1 a problem |
|
754 |
DROP TABLE t1, t2; |
|
755 |
create table t1 (f1 date); |
|
756 |
insert into t1 values('2005-06-06'); |
|
757 |
insert into t1 values('2005-06-06'); |
|
758 |
select date(left(f1+0,8)) from t1 group by 1; |
|
759 |
date(left(f1+0,8)) |
|
760 |
2005-06-06 |
|
761 |
drop table t1; |
|
762 |
CREATE TABLE t1 (n int); |
|
763 |
INSERT INTO t1 VALUES (1); |
|
764 |
SELECT n+1 AS n FROM t1 GROUP BY n; |
|
765 |
n
|
|
766 |
2
|
|
767 |
Warnings: |
|
768 |
Warning 1052 Column 'n' in group statement is ambiguous |
|
769 |
DROP TABLE t1; |
|
770 |
create table t1(f1 varchar(5) key); |
|
771 |
insert into t1 values (1),(2); |
|
772 |
select sql_buffer_result max(f1) is null from t1; |
|
773 |
max(f1) is null |
|
774 |
0
|
|
775 |
select sql_buffer_result max(f1)+1 from t1; |
|
776 |
max(f1)+1 |
|
777 |
3
|
|
778 |
drop table t1; |
|
779 |
CREATE TABLE t1(a INT); |
|
780 |
INSERT INTO t1 VALUES (1),(2); |
|
781 |
SELECT a FROM t1 GROUP BY 'a'; |
|
782 |
a
|
|
783 |
1
|
|
784 |
SELECT a FROM t1 GROUP BY "a"; |
|
785 |
a
|
|
786 |
1
|
|
787 |
SELECT a FROM t1 GROUP BY `a`; |
|
788 |
a
|
|
789 |
1
|
|
790 |
2
|
|
791 |
SELECT a FROM t1 GROUP BY "a"; |
|
792 |
a
|
|
793 |
1
|
|
794 |
SELECT a FROM t1 GROUP BY 'a'; |
|
795 |
a
|
|
796 |
1
|
|
797 |
SELECT a FROM t1 GROUP BY `a`; |
|
798 |
a
|
|
799 |
1
|
|
800 |
2
|
|
801 |
SELECT a FROM t1 HAVING 'a' > 1; |
|
802 |
a
|
|
803 |
Warnings: |
|
804 |
Warning 1292 Truncated incorrect DOUBLE value: 'a' |
|
805 |
SELECT a FROM t1 HAVING "a" > 1; |
|
806 |
a
|
|
807 |
Warnings: |
|
808 |
Warning 1292 Truncated incorrect DOUBLE value: 'a' |
|
809 |
SELECT a FROM t1 HAVING `a` > 1; |
|
810 |
a
|
|
811 |
2
|
|
812 |
SELECT a FROM t1 ORDER BY 'a' DESC; |
|
813 |
a
|
|
814 |
1
|
|
815 |
2
|
|
816 |
SELECT a FROM t1 ORDER BY "a" DESC; |
|
817 |
a
|
|
818 |
1
|
|
819 |
2
|
|
820 |
SELECT a FROM t1 ORDER BY `a` DESC; |
|
821 |
a
|
|
822 |
2
|
|
823 |
1
|
|
824 |
DROP TABLE t1; |
|
825 |
CREATE TABLE t1 ( |
|
826 |
f1 int(10) unsigned NOT NULL auto_increment primary key, |
|
827 |
f2 varchar(100) NOT NULL default '' |
|
828 |
);
|
|
829 |
CREATE TABLE t2 ( |
|
830 |
f1 varchar(10) NOT NULL default '', |
|
831 |
f2 char(3) NOT NULL default '', |
|
832 |
PRIMARY KEY (`f1`), |
|
833 |
KEY `k1` (`f2`,`f1`) |
|
834 |
);
|
|
835 |
INSERT INTO t1 values(NULL, ''); |
|
836 |
INSERT INTO `t2` VALUES ('486878','WDT'),('486910','WDT'); |
|
837 |
SELECT SQL_BUFFER_RESULT avg(t2.f1) FROM t1, t2 where t2.f2 = 'SIR' GROUP BY t1.f1; |
|
838 |
avg(t2.f1) |
|
839 |
SELECT avg(t2.f1) FROM t1, t2 where t2.f2 = 'SIR' GROUP BY t1.f1; |
|
840 |
avg(t2.f1) |
|
841 |
DROP TABLE t1, t2; |
|
842 |
create table t1 (c1 char(3), c2 char(3)); |
|
843 |
create table t2 (c3 char(3), c4 char(3)); |
|
844 |
insert into t1 values ('aaa', 'bb1'), ('aaa', 'bb2'); |
|
845 |
insert into t2 values ('aaa', 'bb1'), ('aaa', 'bb2'); |
|
846 |
select t1.c1 as c2 from t1, t2 where t1.c2 = t2.c4 |
|
847 |
group by c2; |
|
848 |
c2
|
|
849 |
aaa
|
|
850 |
aaa
|
|
851 |
Warnings: |
|
852 |
Warning 1052 Column 'c2' in group statement is ambiguous |
|
853 |
show warnings; |
|
854 |
Level Code Message |
|
855 |
Warning 1052 Column 'c2' in group statement is ambiguous |
|
856 |
select t1.c1 as c2 from t1, t2 where t1.c2 = t2.c4 |
|
857 |
group by t1.c1; |
|
858 |
c2
|
|
859 |
aaa
|
|
860 |
show warnings; |
|
861 |
Level Code Message |
|
862 |
drop table t1, t2; |
|
863 |
CREATE TABLE t1 (a INT PRIMARY KEY, b INT, key (b)); |
|
864 |
INSERT INTO t1 VALUES (1, 1); |
|
865 |
INSERT INTO t1 SELECT a + 1 , MOD(a + 1 , 20) FROM t1; |
|
866 |
INSERT INTO t1 SELECT a + 2 , MOD(a + 2 , 20) FROM t1; |
|
867 |
INSERT INTO t1 SELECT a + 4 , MOD(a + 4 , 20) FROM t1; |
|
868 |
INSERT INTO t1 SELECT a + 8 , MOD(a + 8 , 20) FROM t1; |
|
869 |
INSERT INTO t1 SELECT a + 16, MOD(a + 16, 20) FROM t1; |
|
870 |
INSERT INTO t1 SELECT a + 32, MOD(a + 32, 20) FROM t1; |
|
871 |
INSERT INTO t1 SELECT a + 64, MOD(a + 64, 20) FROM t1; |
|
872 |
SELECT MIN(b), MAX(b) from t1; |
|
873 |
MIN(b) MAX(b) |
|
874 |
0 19 |
|
875 |
EXPLAIN SELECT b, sum(1) FROM t1 GROUP BY b; |
|
876 |
id select_type table type possible_keys key key_len ref rows Extra |
|
877 |
1 SIMPLE t1 index NULL b 5 NULL 128 Using index |
|
878 |
EXPLAIN SELECT SQL_BIG_RESULT b, sum(1) FROM t1 GROUP BY b; |
|
879 |
id select_type table type possible_keys key key_len ref rows Extra |
|
880 |
1 SIMPLE t1 index NULL b 5 NULL 128 Using index; Using filesort |
|
881 |
SELECT b, sum(1) FROM t1 GROUP BY b; |
|
882 |
b sum(1) |
|
883 |
0 6 |
|
884 |
1 7 |
|
885 |
2 7 |
|
886 |
3 7 |
|
887 |
4 7 |
|
888 |
5 7 |
|
889 |
6 7 |
|
890 |
7 7 |
|
891 |
8 7 |
|
892 |
9 6 |
|
893 |
10 6 |
|
894 |
11 6 |
|
895 |
12 6 |
|
896 |
13 6 |
|
897 |
14 6 |
|
898 |
15 6 |
|
899 |
16 6 |
|
900 |
17 6 |
|
901 |
18 6 |
|
902 |
19 6 |
|
903 |
SELECT SQL_BIG_RESULT b, sum(1) FROM t1 GROUP BY b; |
|
904 |
b sum(1) |
|
905 |
0 6 |
|
906 |
1 7 |
|
907 |
2 7 |
|
908 |
3 7 |
|
909 |
4 7 |
|
910 |
5 7 |
|
911 |
6 7 |
|
912 |
7 7 |
|
913 |
8 7 |
|
914 |
9 6 |
|
915 |
10 6 |
|
916 |
11 6 |
|
917 |
12 6 |
|
918 |
13 6 |
|
919 |
14 6 |
|
920 |
15 6 |
|
921 |
16 6 |
|
922 |
17 6 |
|
923 |
18 6 |
|
924 |
19 6 |
|
925 |
DROP TABLE t1; |
|
926 |
CREATE TABLE t1 (a INT PRIMARY KEY, b INT); |
|
927 |
INSERT INTO t1 VALUES (1,1),(2,1),(3,2),(4,2),(5,3),(6,3); |
|
928 |
SELECT MAX(a)-MIN(a) FROM t1 GROUP BY b; |
|
929 |
MAX(a)-MIN(a) |
|
930 |
1
|
|
931 |
1
|
|
932 |
1
|
|
933 |
SELECT CEILING(MIN(a)) FROM t1 GROUP BY b; |
|
934 |
CEILING(MIN(a)) |
|
935 |
1
|
|
936 |
3
|
|
937 |
5
|
|
938 |
SELECT CASE WHEN AVG(a)>=0 THEN 'Positive' ELSE 'Negative' END FROM t1 |
|
939 |
GROUP BY b; |
|
940 |
CASE WHEN AVG(a)>=0 THEN 'Positive' ELSE 'Negative' END |
|
941 |
Positive
|
|
942 |
Positive
|
|
943 |
Positive
|
|
944 |
SELECT a + 1 FROM t1 GROUP BY a; |
|
945 |
a + 1 |
|
946 |
2
|
|
947 |
3
|
|
948 |
4
|
|
949 |
5
|
|
950 |
6
|
|
951 |
7
|
|
952 |
SELECT a + b FROM t1 GROUP BY b; |
|
953 |
a + b |
|
954 |
2
|
|
955 |
5
|
|
956 |
8
|
|
957 |
SELECT (SELECT t1_outer.a FROM t1 AS t1_inner GROUP BY b LIMIT 1) |
|
958 |
FROM t1 AS t1_outer; |
|
959 |
(SELECT t1_outer.a FROM t1 AS t1_inner GROUP BY b LIMIT 1) |
|
960 |
1
|
|
961 |
2
|
|
962 |
3
|
|
963 |
4
|
|
964 |
5
|
|
965 |
6
|
|
966 |
SELECT 1 FROM t1 as t1_outer GROUP BY a |
|
967 |
HAVING (SELECT t1_outer.a FROM t1 AS t1_inner GROUP BY b LIMIT 1); |
|
968 |
1
|
|
969 |
1
|
|
970 |
1
|
|
971 |
1
|
|
972 |
1
|
|
973 |
1
|
|
974 |
1
|
|
975 |
SELECT (SELECT t1_outer.a FROM t1 AS t1_inner LIMIT 1) |
|
976 |
FROM t1 AS t1_outer GROUP BY t1_outer.b; |
|
977 |
(SELECT t1_outer.a FROM t1 AS t1_inner LIMIT 1) |
|
978 |
1
|
|
979 |
3
|
|
980 |
5
|
|
981 |
SELECT 1 FROM t1 as t1_outer GROUP BY a |
|
982 |
HAVING (SELECT t1_outer.b FROM t1 AS t1_inner LIMIT 1); |
|
983 |
ERROR 42S22: Unknown column 'test.t1_outer.b' in 'field list' |
|
984 |
SELECT (SELECT SUM(t1_inner.a) FROM t1 AS t1_inner LIMIT 1) |
|
985 |
FROM t1 AS t1_outer GROUP BY t1_outer.b; |
|
986 |
(SELECT SUM(t1_inner.a) FROM t1 AS t1_inner LIMIT 1) |
|
987 |
21
|
|
988 |
21
|
|
989 |
21
|
|
990 |
SELECT (SELECT SUM(t1_inner.a) FROM t1 AS t1_inner GROUP BY t1_inner.b LIMIT 1) |
|
991 |
FROM t1 AS t1_outer; |
|
992 |
(SELECT SUM(t1_inner.a) FROM t1 AS t1_inner GROUP BY t1_inner.b LIMIT 1) |
|
993 |
3
|
|
994 |
3
|
|
995 |
3
|
|
996 |
3
|
|
997 |
3
|
|
998 |
3
|
|
999 |
SELECT (SELECT SUM(t1_outer.a) FROM t1 AS t1_inner LIMIT 1) |
|
1000 |
FROM t1 AS t1_outer GROUP BY t1_outer.b; |
|
1001 |
(SELECT SUM(t1_outer.a) FROM t1 AS t1_inner LIMIT 1) |
|
1002 |
3
|
|
1003 |
7
|
|
1004 |
11
|
|
1005 |
SELECT 1 FROM t1 as t1_outer |
|
1006 |
WHERE (SELECT t1_outer.b FROM t1 AS t1_inner GROUP BY t1_inner.b LIMIT 1); |
|
1007 |
1
|
|
1008 |
1
|
|
1009 |
1
|
|
1010 |
1
|
|
1011 |
1
|
|
1012 |
1
|
|
1013 |
1
|
|
1014 |
SELECT b FROM t1 GROUP BY b HAVING CEILING(b) > 0; |
|
1015 |
b
|
|
1016 |
1
|
|
1017 |
2
|
|
1018 |
3
|
|
1019 |
SELECT 1 FROM t1 GROUP BY b HAVING b = 2 OR b = 3 OR SUM(a) > 12; |
|
1020 |
1
|
|
1021 |
1
|
|
1022 |
1
|
|
1023 |
SELECT 1 FROM t1 GROUP BY b HAVING ROW (b,b) = ROW (1,1); |
|
1024 |
1
|
|
1025 |
1
|
|
1026 |
SELECT 1 FROM t1 GROUP BY b HAVING a = 2; |
|
1027 |
ERROR 42S22: Unknown column 'a' in 'having clause' |
|
1028 |
SELECT 1 FROM t1 GROUP BY SUM(b); |
|
1029 |
ERROR HY000: Invalid use of group function |
|
1030 |
SELECT b FROM t1 AS t1_outer GROUP BY a HAVING t1_outer.a IN |
|
1031 |
(SELECT SUM(t1_inner.b)+t1_outer.b FROM t1 AS t1_inner GROUP BY t1_inner.a |
|
1032 |
HAVING SUM(t1_inner.b)+t1_outer.b > 5); |
|
1033 |
b
|
|
1034 |
3
|
|
1035 |
DROP TABLE t1; |
|
1036 |
create table t1(f1 int, f2 int); |
|
1037 |
select * from t1 group by f1; |
|
1038 |
f1 f2 |
|
1039 |
select * from t1 group by f2; |
|
1040 |
f1 f2 |
|
1041 |
select * from t1 group by f1, f2; |
|
1042 |
f1 f2 |
|
1043 |
select t1.f1,t.* from t1, t1 t group by 1; |
|
1044 |
f1 f1 f2 |
|
1045 |
drop table t1; |
|
1046 |
CREATE TABLE t1( |
|
1047 |
id INT AUTO_INCREMENT PRIMARY KEY, |
|
1048 |
c1 INT NOT NULL, |
|
1049 |
c2 INT NOT NULL, |
|
1050 |
UNIQUE KEY (c2,c1)); |
|
1051 |
INSERT INTO t1(c1,c2) VALUES (5,1), (4,1), (3,5), (2,3), (1,3); |
|
1052 |
SELECT * FROM t1 ORDER BY c1; |
|
1053 |
id c1 c2 |
|
1054 |
5 1 3 |
|
1055 |
4 2 3 |
|
1056 |
3 3 5 |
|
1057 |
2 4 1 |
|
1058 |
1 5 1 |
|
1059 |
SELECT * FROM t1 GROUP BY id ORDER BY c1; |
|
1060 |
id c1 c2 |
|
1061 |
5 1 3 |
|
1062 |
4 2 3 |
|
1063 |
3 3 5 |
|
1064 |
2 4 1 |
|
1065 |
1 5 1 |
|
1066 |
SELECT * FROM t1 GROUP BY id ORDER BY id DESC; |
|
1067 |
id c1 c2 |
|
1068 |
5 1 3 |
|
1069 |
4 2 3 |
|
1070 |
3 3 5 |
|
1071 |
2 4 1 |
|
1072 |
1 5 1 |
|
1073 |
SELECT * FROM t1 GROUP BY c2 ,c1, id ORDER BY c2, c1; |
|
1074 |
id c1 c2 |
|
1075 |
2 4 1 |
|
1076 |
1 5 1 |
|
1077 |
5 1 3 |
|
1078 |
4 2 3 |
|
1079 |
3 3 5 |
|
1080 |
SELECT * FROM t1 GROUP BY c2, c1, id ORDER BY c2 DESC, c1; |
|
1081 |
id c1 c2 |
|
1082 |
3 3 5 |
|
1083 |
5 1 3 |
|
1084 |
4 2 3 |
|
1085 |
2 4 1 |
|
1086 |
1 5 1 |
|
1087 |
SELECT * FROM t1 GROUP BY c2, c1, id ORDER BY c2 DESC, c1 DESC; |
|
1088 |
id c1 c2 |
|
1089 |
3 3 5 |
|
1090 |
4 2 3 |
|
1091 |
5 1 3 |
|
1092 |
1 5 1 |
|
1093 |
2 4 1 |
|
1094 |
SELECT * FROM t1 GROUP BY c2 ORDER BY c2, c1; |
|
1095 |
id c1 c2 |
|
1096 |
1 5 1 |
|
1097 |
4 2 3 |
|
1098 |
3 3 5 |
|
1099 |
SELECT * FROM t1 GROUP BY c2 ORDER BY c2 DESC, c1; |
|
1100 |
id c1 c2 |
|
1101 |
3 3 5 |
|
1102 |
4 2 3 |
|
1103 |
1 5 1 |
|
1104 |
SELECT * FROM t1 GROUP BY c2 ORDER BY c2 DESC, c1 DESC; |
|
1105 |
id c1 c2 |
|
1106 |
3 3 5 |
|
1107 |
4 2 3 |
|
1108 |
1 5 1 |
|
1109 |
DROP TABLE t1; |
|
1110 |
#
|
|
1111 |
# Bug#27219: Aggregate functions in ORDER BY.
|
|
1112 |
#
|
|
1113 |
CREATE TABLE t1 (a INT, b INT, c INT DEFAULT 0); |
|
1114 |
INSERT INTO t1 (a, b) VALUES (3,3), (2,2), (3,3), (2,2), (3,3), (4,4); |
|
1115 |
CREATE TABLE t2 SELECT * FROM t1; |
|
1116 |
SELECT 1 FROM t1 ORDER BY COUNT(*); |
|
1117 |
1
|
|
1118 |
1
|
|
1119 |
SELECT 1 FROM t1 ORDER BY COUNT(*) + 1; |
|
1120 |
1
|
|
1121 |
1
|
|
1122 |
SELECT 1 FROM t1 ORDER BY COUNT(*) + a; |
|
1123 |
1
|
|
1124 |
1
|
|
1125 |
1
|
|
1126 |
1
|
|
1127 |
1
|
|
1128 |
1
|
|
1129 |
1
|
|
1130 |
SELECT 1 FROM t1 ORDER BY COUNT(*), 1; |
|
1131 |
1
|
|
1132 |
1
|
|
1133 |
SELECT 1 FROM t1 ORDER BY COUNT(*), a; |
|
1134 |
1
|
|
1135 |
1
|
|
1136 |
1
|
|
1137 |
1
|
|
1138 |
1
|
|
1139 |
1
|
|
1140 |
1
|
|
1141 |
SELECT 1 FROM t1 ORDER BY SUM(a); |
|
1142 |
1
|
|
1143 |
1
|
|
1144 |
SELECT 1 FROM t1 ORDER BY SUM(a + 1); |
|
1145 |
1
|
|
1146 |
1
|
|
1147 |
SELECT 1 FROM t1 ORDER BY SUM(a) + 1; |
|
1148 |
1
|
|
1149 |
1
|
|
1150 |
SELECT 1 FROM t1 ORDER BY SUM(a), b; |
|
1151 |
1
|
|
1152 |
1
|
|
1153 |
SELECT a FROM t1 ORDER BY COUNT(b); |
|
1154 |
a
|
|
1155 |
3
|
|
1156 |
SELECT t1.a FROM t1 ORDER BY (SELECT SUM(t2.a) FROM t2); |
|
1157 |
a
|
|
1158 |
3
|
|
1159 |
2
|
|
1160 |
3
|
|
1161 |
2
|
|
1162 |
3
|
|
1163 |
4
|
|
1164 |
SELECT t1.a FROM t1 ORDER BY (SELECT SUM(t2.a) FROM t2 ORDER BY t2.a); |
|
1165 |
a
|
|
1166 |
3
|
|
1167 |
2
|
|
1168 |
3
|
|
1169 |
2
|
|
1170 |
3
|
|
1171 |
4
|
|
1172 |
SELECT t1.a FROM t1 ORDER BY (SELECT t2.a FROM t2 ORDER BY SUM(t2.b) LIMIT 1); |
|
1173 |
a
|
|
1174 |
3
|
|
1175 |
2
|
|
1176 |
3
|
|
1177 |
2
|
|
1178 |
3
|
|
1179 |
4
|
|
1180 |
SELECT t1.a FROM t1 |
|
1181 |
WHERE t1.a = (SELECT t2.a FROM t2 ORDER BY SUM(t2.b) LIMIT 1); |
|
1182 |
a
|
|
1183 |
3
|
|
1184 |
3
|
|
1185 |
3
|
|
1186 |
SELECT t1.a FROM t1 GROUP BY t1.a |
|
1187 |
HAVING t1.a = (SELECT t2.a FROM t2 ORDER BY SUM(t2.a) LIMIT 1); |
|
1188 |
a
|
|
1189 |
3
|
|
1190 |
SELECT t1.a FROM t1 GROUP BY t1.a |
|
1191 |
HAVING t1.a IN (SELECT t2.a FROM t2 ORDER BY SUM(t1.b)); |
|
1192 |
a
|
|
1193 |
2
|
|
1194 |
3
|
|
1195 |
4
|
|
1196 |
SELECT t1.a FROM t1 GROUP BY t1.a |
|
1197 |
HAVING t1.a IN (SELECT t2.a FROM t2 ORDER BY t2.a, SUM(t2.b)); |
|
1198 |
a
|
|
1199 |
3
|
|
1200 |
SELECT t1.a FROM t1 GROUP BY t1.a |
|
1201 |
HAVING t1.a > ANY (SELECT t2.a FROM t2 ORDER BY t2.a, SUM(t2.b)); |
|
1202 |
a
|
|
1203 |
4
|
|
1204 |
SELECT t1.a FROM t1 |
|
1205 |
WHERE t1.a = (SELECT t2.a FROM t2 ORDER BY SUM(t1.b)); |
|
1206 |
a
|
|
1207 |
3
|
|
1208 |
3
|
|
1209 |
3
|
|
1210 |
SELECT 1 FROM t1 GROUP BY t1.a |
|
1211 |
HAVING (SELECT AVG(SUM(t1.b) + 1) FROM t2 ORDER BY SUM(t2.a) LIMIT 1); |
|
1212 |
1
|
|
1213 |
1
|
|
1214 |
1
|
|
1215 |
1
|
|
1216 |
SELECT 1 FROM t1 GROUP BY t1.a |
|
1217 |
HAVING (SELECT AVG(SUM(t1.b) + t2.b) FROM t2 ORDER BY SUM(t2.a) LIMIT 1); |
|
1218 |
1
|
|
1219 |
1
|
|
1220 |
1
|
|
1221 |
1
|
|
1222 |
SELECT 1 FROM t1 GROUP BY t1.a |
|
1223 |
HAVING (SELECT AVG(t1.b + t2.b) FROM t2 ORDER BY SUM(t2.a) LIMIT 1); |
|
1224 |
1
|
|
1225 |
1
|
|
1226 |
1
|
|
1227 |
1
|
|
1228 |
SELECT 1 FROM t1 GROUP BY t1.a |
|
1229 |
HAVING (SELECT AVG(SUM(t1.b) + 1) FROM t2 ORDER BY t2.a LIMIT 1); |
|
1230 |
1
|
|
1231 |
1
|
|
1232 |
1
|
|
1233 |
1
|
|
1234 |
SELECT 1 FROM t1 GROUP BY t1.a |
|
1235 |
HAVING (SELECT AVG(SUM(t1.b) + t2.b) FROM t2 ORDER BY t2.a LIMIT 1); |
|
1236 |
1
|
|
1237 |
1
|
|
1238 |
1
|
|
1239 |
1
|
|
1240 |
SELECT 1 FROM t1 GROUP BY t1.a |
|
1241 |
HAVING (SELECT AVG(t1.b + t2.b) FROM t2 ORDER BY t2.a LIMIT 1); |
|
1242 |
1
|
|
1243 |
1
|
|
1244 |
1
|
|
1245 |
1
|
|
1246 |
SELECT t1.a FROM t1 |
|
1247 |
WHERE t1.a = (SELECT t2.a FROM t2 GROUP BY t2.a |
|
1248 |
ORDER BY SUM(t2.b), SUM(t1.b) LIMIT 1); |
|
1249 |
a
|
|
1250 |
4
|
|
1251 |
SELECT t1.a, SUM(t1.b) FROM t1 |
|
1252 |
WHERE t1.a = (SELECT SUM(t2.b) FROM t2 GROUP BY t2.a |
|
1253 |
ORDER BY SUM(t2.b), SUM(t1.b) LIMIT 1) |
|
1254 |
GROUP BY t1.a; |
|
1255 |
a SUM(t1.b) |
|
1256 |
4 4 |
|
1257 |
SELECT t1.a, SUM(t1.b) FROM t1 |
|
1258 |
WHERE t1.a = (SELECT SUM(t2.b) FROM t2 |
|
1259 |
ORDER BY SUM(t2.b) + SUM(t1.b) LIMIT 1) |
|
1260 |
GROUP BY t1.a; |
|
1261 |
a SUM(t1.b) |
|
1262 |
SELECT t1.a, SUM(t1.b) FROM t1 |
|
1263 |
WHERE t1.a = (SELECT SUM(t2.b) FROM t2 |
|
1264 |
ORDER BY SUM(t2.b + t1.a) LIMIT 1) |
|
1265 |
GROUP BY t1.a; |
|
1266 |
a SUM(t1.b) |
|
1267 |
SELECT t1.a FROM t1 GROUP BY t1.a |
|
1268 |
HAVING (1, 1) = (SELECT SUM(t1.a), t1.a FROM t2 LIMIT 1); |
|
1269 |
a
|
|
1270 |
select avg ( |
|
1271 |
(select |
|
1272 |
(select sum(outr.a + innr.a) from t1 as innr limit 1) as tt |
|
1273 |
from t1 as outr order by outr.a limit 1)) |
|
1274 |
from t1 as most_outer; |
|
1275 |
avg ( |
|
1276 |
(select |
|
1277 |
(select sum(outr.a + innr.a) from t1 as innr limit 1) as tt |
|
1278 |
from t1 as outr order by outr.a limit 1)) |
|
1279 |
29.0000
|
|
1280 |
select avg ( |
|
1281 |
(select ( |
|
1282 |
(select sum(outr.a + innr.a) from t1 as innr limit 1)) as tt |
|
1283 |
from t1 as outr order by count(outr.a) limit 1)) as tt |
|
1284 |
from t1 as most_outer; |
|
1285 |
tt
|
|
1286 |
35.0000
|
|
1287 |
select (select sum(outr.a + t1.a) from t1 limit 1) as tt from t1 as outr order by outr.a; |
|
1288 |
tt
|
|
1289 |
29
|
|
1290 |
29
|
|
1291 |
35
|
|
1292 |
35
|
|
1293 |
35
|
|
1294 |
41
|
|
1295 |
DROP TABLE t1, t2; |
|
1296 |
End of 5.0 tests |
|
1297 |
CREATE TABLE t1 (a INT, b INT, |
|
1298 |
PRIMARY KEY (a), |
|
1299 |
KEY i2(a,b)); |
|
1300 |
INSERT INTO t1 VALUES (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8); |
|
1301 |
INSERT INTO t1 SELECT a + 8,b FROM t1; |
|
1302 |
INSERT INTO t1 SELECT a + 16,b FROM t1; |
|
1303 |
INSERT INTO t1 SELECT a + 32,b FROM t1; |
|
1304 |
INSERT INTO t1 SELECT a + 64,b FROM t1; |
|
1305 |
INSERT INTO t1 SELECT a + 128,b FROM t1 limit 16; |
|
1306 |
ANALYZE TABLE t1; |
|
1307 |
Table Op Msg_type Msg_text |
|
1308 |
test.t1 analyze status OK |
|
1309 |
EXPLAIN SELECT a FROM t1 WHERE a < 2; |
|
1310 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1311 |
1 SIMPLE t1 range PRIMARY,i2 PRIMARY 4 NULL 1 Using where; Using index |
|
1312 |
EXPLAIN SELECT a FROM t1 WHERE a < 2 ORDER BY a; |
|
1313 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1314 |
1 SIMPLE t1 range PRIMARY,i2 PRIMARY 4 NULL 1 Using where; Using index |
|
1315 |
EXPLAIN SELECT a FROM t1 WHERE a < 2 GROUP BY a; |
|
1316 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1317 |
1 SIMPLE t1 range PRIMARY,i2 PRIMARY 4 NULL 1 Using where; Using index |
|
1318 |
EXPLAIN SELECT a FROM t1 IGNORE INDEX (PRIMARY,i2); |
|
1319 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1320 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 144 |
|
1321 |
EXPLAIN SELECT a FROM t1 IGNORE INDEX FOR JOIN (PRIMARY,i2); |
|
1322 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1323 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 144 |
|
1324 |
EXPLAIN SELECT a FROM t1 IGNORE INDEX FOR GROUP BY (PRIMARY,i2) GROUP BY a; |
|
1325 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1326 |
1 SIMPLE t1 index NULL PRIMARY 4 NULL 144 Using index |
|
1327 |
EXPLAIN SELECT a FROM t1 IGNORE INDEX FOR ORDER BY (PRIMARY,i2) ORDER BY a; |
|
1328 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1329 |
1 SIMPLE t1 index NULL PRIMARY 4 NULL 144 Using index |
|
1330 |
SELECT a FROM t1 IGNORE INDEX FOR ORDER BY (PRIMARY,i2) ORDER BY a; |
|
1331 |
a
|
|
1332 |
1
|
|
1333 |
2
|
|
1334 |
3
|
|
1335 |
4
|
|
1336 |
5
|
|
1337 |
6
|
|
1338 |
7
|
|
1339 |
8
|
|
1340 |
9
|
|
1341 |
10
|
|
1342 |
11
|
|
1343 |
12
|
|
1344 |
13
|
|
1345 |
14
|
|
1346 |
15
|
|
1347 |
16
|
|
1348 |
17
|
|
1349 |
18
|
|
1350 |
19
|
|
1351 |
20
|
|
1352 |
21
|
|
1353 |
22
|
|
1354 |
23
|
|
1355 |
24
|
|
1356 |
25
|
|
1357 |
26
|
|
1358 |
27
|
|
1359 |
28
|
|
1360 |
29
|
|
1361 |
30
|
|
1362 |
31
|
|
1363 |
32
|
|
1364 |
33
|
|
1365 |
34
|
|
1366 |
35
|
|
1367 |
36
|
|
1368 |
37
|
|
1369 |
38
|
|
1370 |
39
|
|
1371 |
40
|
|
1372 |
41
|
|
1373 |
42
|
|
1374 |
43
|
|
1375 |
44
|
|
1376 |
45
|
|
1377 |
46
|
|
1378 |
47
|
|
1379 |
48
|
|
1380 |
49
|
|
1381 |
50
|
|
1382 |
51
|
|
1383 |
52
|
|
1384 |
53
|
|
1385 |
54
|
|
1386 |
55
|
|
1387 |
56
|
|
1388 |
57
|
|
1389 |
58
|
|
1390 |
59
|
|
1391 |
60
|
|
1392 |
61
|
|
1393 |
62
|
|
1394 |
63
|
|
1395 |
64
|
|
1396 |
65
|
|
1397 |
66
|
|
1398 |
67
|
|
1399 |
68
|
|
1400 |
69
|
|
1401 |
70
|
|
1402 |
71
|
|
1403 |
72
|
|
1404 |
73
|
|
1405 |
74
|
|
1406 |
75
|
|
1407 |
76
|
|
1408 |
77
|
|
1409 |
78
|
|
1410 |
79
|
|
1411 |
80
|
|
1412 |
81
|
|
1413 |
82
|
|
1414 |
83
|
|
1415 |
84
|
|
1416 |
85
|
|
1417 |
86
|
|
1418 |
87
|
|
1419 |
88
|
|
1420 |
89
|
|
1421 |
90
|
|
1422 |
91
|
|
1423 |
92
|
|
1424 |
93
|
|
1425 |
94
|
|
1426 |
95
|
|
1427 |
96
|
|
1428 |
97
|
|
1429 |
98
|
|
1430 |
99
|
|
1431 |
100
|
|
1432 |
101
|
|
1433 |
102
|
|
1434 |
103
|
|
1435 |
104
|
|
1436 |
105
|
|
1437 |
106
|
|
1438 |
107
|
|
1439 |
108
|
|
1440 |
109
|
|
1441 |
110
|
|
1442 |
111
|
|
1443 |
112
|
|
1444 |
113
|
|
1445 |
114
|
|
1446 |
115
|
|
1447 |
116
|
|
1448 |
117
|
|
1449 |
118
|
|
1450 |
119
|
|
1451 |
120
|
|
1452 |
121
|
|
1453 |
122
|
|
1454 |
123
|
|
1455 |
124
|
|
1456 |
125
|
|
1457 |
126
|
|
1458 |
127
|
|
1459 |
128
|
|
1460 |
129
|
|
1461 |
130
|
|
1462 |
131
|
|
1463 |
132
|
|
1464 |
133
|
|
1465 |
134
|
|
1466 |
135
|
|
1467 |
136
|
|
1468 |
137
|
|
1469 |
138
|
|
1470 |
139
|
|
1471 |
140
|
|
1472 |
141
|
|
1473 |
142
|
|
1474 |
143
|
|
1475 |
144
|
|
1476 |
EXPLAIN SELECT a FROM t1 IGNORE INDEX FOR ORDER BY (PRIMARY) |
|
1477 |
IGNORE INDEX FOR GROUP BY (i2) GROUP BY a; |
|
1478 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1479 |
1 SIMPLE t1 index NULL PRIMARY 4 NULL 144 Using index |
|
1480 |
EXPLAIN SELECT a FROM t1 IGNORE INDEX (PRIMARY) IGNORE INDEX FOR ORDER BY (i2); |
|
1481 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1482 |
1 SIMPLE t1 index NULL i2 9 NULL 144 Using index |
|
1483 |
EXPLAIN SELECT a FROM t1 FORCE INDEX (i2); |
|
1484 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1485 |
1 SIMPLE t1 index NULL i2 9 NULL 144 Using index |
|
1486 |
EXPLAIN SELECT a FROM t1 USE INDEX (); |
|
1487 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1488 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 144 |
|
1489 |
EXPLAIN SELECT a FROM t1 USE INDEX () USE INDEX (i2); |
|
1490 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1491 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 144 |
|
1492 |
EXPLAIN SELECT a FROM t1 |
|
1493 |
FORCE INDEX (PRIMARY) |
|
1494 |
IGNORE INDEX FOR GROUP BY (i2) |
|
1495 |
IGNORE INDEX FOR ORDER BY (i2) |
|
1496 |
USE INDEX (i2); |
|
1497 |
ERROR HY000: Incorrect usage of USE INDEX and FORCE INDEX |
|
1498 |
EXPLAIN SELECT a FROM t1 USE INDEX (i2) USE INDEX (); |
|
1499 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1500 |
1 SIMPLE t1 index NULL i2 9 NULL 144 Using index |
|
1501 |
EXPLAIN SELECT a FROM t1 FORCE INDEX (); |
|
1502 |
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 |
|
1503 |
EXPLAIN SELECT a FROM t1 IGNORE INDEX (); |
|
1504 |
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 |
|
1505 |
EXPLAIN SELECT a FROM t1 USE INDEX FOR JOIN (i2) |
|
1506 |
USE INDEX FOR GROUP BY (i2) GROUP BY a; |
|
1507 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1508 |
1 SIMPLE t1 # NULL i2 # NULL # # |
|
1509 |
EXPLAIN SELECT a FROM t1 FORCE INDEX FOR JOIN (i2) |
|
1510 |
FORCE INDEX FOR GROUP BY (i2) GROUP BY a; |
|
1511 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1512 |
1 SIMPLE t1 range NULL i2 4 NULL 145 Using index for group-by |
|
1513 |
EXPLAIN SELECT a FROM t1 USE INDEX () IGNORE INDEX (i2); |
|
1514 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1515 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 144 |
|
1516 |
EXPLAIN SELECT a FROM t1 IGNORE INDEX (i2) USE INDEX (); |
|
1517 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1518 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 144 |
|
1519 |
EXPLAIN SELECT a FROM t1 |
|
1520 |
USE INDEX FOR GROUP BY (i2) |
|
1521 |
USE INDEX FOR ORDER BY (i2) |
|
1522 |
USE INDEX FOR JOIN (i2); |
|
1523 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1524 |
1 SIMPLE t1 index NULL i2 9 NULL 144 Using index |
|
1525 |
EXPLAIN SELECT a FROM t1 |
|
1526 |
USE INDEX FOR JOIN (i2) |
|
1527 |
USE INDEX FOR JOIN (i2) |
|
1528 |
USE INDEX FOR JOIN (i2,i2); |
|
1529 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1530 |
1 SIMPLE t1 index NULL i2 9 NULL 144 Using index |
|
1531 |
EXPLAIN SELECT 1 FROM t1 WHERE a IN |
|
1532 |
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2)); |
|
1533 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1534 |
1 PRIMARY t1 ALL NULL NULL NULL NULL 144 Start temporary |
|
1535 |
1 PRIMARY t1 eq_ref PRIMARY,i2 PRIMARY 4 test.t1.a 1 Using index; End temporary |
|
1536 |
CREATE TABLE t2 (a INT, b INT, KEY(a)); |
|
1537 |
INSERT INTO t2 VALUES (1, 1), (2, 2), (3,3), (4,4); |
|
1538 |
EXPLAIN SELECT a, SUM(b) FROM t2 GROUP BY a LIMIT 2; |
|
1539 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1540 |
1 SIMPLE t2 index NULL a 5 NULL 2 |
|
1541 |
EXPLAIN SELECT a, SUM(b) FROM t2 IGNORE INDEX (a) GROUP BY a LIMIT 2; |
|
1542 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1543 |
1 SIMPLE t2 ALL NULL NULL NULL NULL 4 Using temporary; Using filesort |
|
1544 |
EXPLAIN SELECT 1 FROM t2 WHERE a IN |
|
1545 |
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2)); |
|
1546 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1547 |
1 PRIMARY t1 ALL NULL NULL NULL NULL 144 Start temporary |
|
1548 |
1 PRIMARY t2 index a a 5 NULL 4 Using where; Using index; End temporary; Using join buffer |
|
1549 |
SHOW VARIABLES LIKE 'old'; |
|
1550 |
Variable_name Value |
|
1551 |
old OFF |
|
1552 |
SET @@old = off; |
|
1553 |
ERROR HY000: Variable 'old' is a read only variable |
|
1554 |
DROP TABLE t1, t2; |
|
1555 |
CREATE TABLE t1( |
|
1556 |
a INT, |
|
1557 |
b INT NOT NULL, |
|
1558 |
c INT NOT NULL, |
|
1559 |
d INT, |
|
1560 |
UNIQUE KEY (c,b) |
|
1561 |
);
|
|
1562 |
INSERT INTO t1 VALUES (1,1,1,50), (1,2,3,40), (2,1,3,4); |
|
1563 |
CREATE TABLE t2( |
|
1564 |
a INT, |
|
1565 |
b INT, |
|
1566 |
UNIQUE KEY(a,b) |
|
1567 |
);
|
|
1568 |
INSERT INTO t2 VALUES (NULL, NULL), (NULL, NULL), (NULL, 1), (1, NULL), (1, 1), (1,2); |
|
1569 |
EXPLAIN SELECT c,b,d FROM t1 GROUP BY c,b,d; |
|
1570 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1571 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using filesort |
|
1572 |
SELECT c,b,d FROM t1 GROUP BY c,b,d; |
|
1573 |
c b d |
|
1574 |
1 1 50 |
|
1575 |
3 1 4 |
|
1576 |
3 2 40 |
|
1577 |
EXPLAIN SELECT c,b,d FROM t1 GROUP BY c,b,d ORDER BY NULL; |
|
1578 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1579 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 |
|
1580 |
SELECT c,b,d FROM t1 GROUP BY c,b,d ORDER BY NULL; |
|
1581 |
c b d |
|
1582 |
1 1 50 |
|
1583 |
3 2 40 |
|
1584 |
3 1 4 |
|
1585 |
EXPLAIN SELECT c,b,d FROM t1 ORDER BY c,b,d; |
|
1586 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1587 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using filesort |
|
1588 |
SELECT c,b,d FROM t1 ORDER BY c,b,d; |
|
1589 |
c b d |
|
1590 |
1 1 50 |
|
1591 |
3 1 4 |
|
1592 |
3 2 40 |
|
1593 |
EXPLAIN SELECT c,b,d FROM t1 GROUP BY c,b; |
|
1594 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1595 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using filesort |
|
1596 |
SELECT c,b,d FROM t1 GROUP BY c,b; |
|
1597 |
c b d |
|
1598 |
1 1 50 |
|
1599 |
3 1 4 |
|
1600 |
3 2 40 |
|
1601 |
EXPLAIN SELECT c,b FROM t1 GROUP BY c,b; |
|
1602 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1603 |
1 SIMPLE t1 index NULL c 8 NULL 3 Using index |
|
1604 |
SELECT c,b FROM t1 GROUP BY c,b; |
|
1605 |
c b |
|
1606 |
1 1 |
|
1607 |
3 1 |
|
1608 |
3 2 |
|
1609 |
EXPLAIN SELECT a,b from t2 ORDER BY a,b; |
|
1610 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1611 |
1 SIMPLE t2 index NULL a 10 NULL 6 Using index |
|
1612 |
SELECT a,b from t2 ORDER BY a,b; |
|
1613 |
a b |
|
1614 |
NULL NULL |
|
1615 |
NULL NULL |
|
1616 |
NULL 1 |
|
1617 |
1 NULL |
|
1618 |
1 1 |
|
1619 |
1 2 |
|
1620 |
EXPLAIN SELECT a,b from t2 GROUP BY a,b; |
|
1621 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1622 |
1 SIMPLE t2 index NULL a 10 NULL 6 Using index |
|
1623 |
SELECT a,b from t2 GROUP BY a,b; |
|
1624 |
a b |
|
1625 |
NULL NULL |
|
1626 |
NULL 1 |
|
1627 |
1 NULL |
|
1628 |
1 1 |
|
1629 |
1 2 |
|
1630 |
EXPLAIN SELECT a from t2 GROUP BY a; |
|
1631 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1632 |
1 SIMPLE t2 index NULL a 10 NULL 6 Using index |
|
1633 |
SELECT a from t2 GROUP BY a; |
|
1634 |
a
|
|
1635 |
NULL
|
|
1636 |
1
|
|
1637 |
EXPLAIN SELECT b from t2 GROUP BY b; |
|
1638 |
id select_type table type possible_keys key key_len ref rows Extra |
|
1639 |
1 SIMPLE t2 index NULL a 10 NULL 6 Using index; Using temporary; Using filesort |
|
1640 |
SELECT b from t2 GROUP BY b; |
|
1641 |
b
|
|
1642 |
NULL
|
|
1643 |
1
|
|
1644 |
2
|
|
1645 |
DROP TABLE t1; |
|
1646 |
CREATE TABLE t1 ( a INT, b INT ); |
|
1647 |
SELECT b c, (SELECT a FROM t1 WHERE b = c) |
|
1648 |
FROM t1; |
|
1649 |
c (SELECT a FROM t1 WHERE b = c) |
|
1650 |
SELECT b c, (SELECT a FROM t1 WHERE b = c) |
|
1651 |
FROM t1 |
|
1652 |
HAVING b = 10; |
|
1653 |
c (SELECT a FROM t1 WHERE b = c) |
|
1654 |
SELECT MAX(b) c, (SELECT a FROM t1 WHERE b = c) |
|
1655 |
FROM t1 |
|
1656 |
HAVING b = 10; |
|
1657 |
ERROR 42S22: Reference 'c' not supported (reference to group function) |
|
1658 |
SELECT b c, (SELECT a FROM t1 WHERE b = c) |
|
1659 |
FROM t1; |
|
1660 |
c (SELECT a FROM t1 WHERE b = c) |
|
1661 |
SELECT b c, (SELECT a FROM t1 WHERE b = c) |
|
1662 |
FROM t1 |
|
1663 |
HAVING b = 10; |
|
1664 |
c (SELECT a FROM t1 WHERE b = c) |
|
1665 |
SELECT MAX(b) c, (SELECT a FROM t1 WHERE b = c) |
|
1666 |
FROM t1 |
|
1667 |
HAVING b = 10; |
|
1668 |
ERROR 42S22: Reference 'c' not supported (reference to group function) |
|
1669 |
INSERT INTO t1 VALUES (1, 1); |
|
1670 |
SELECT b c, (SELECT a FROM t1 WHERE b = c) |
|
1671 |
FROM t1; |
|
1672 |
c (SELECT a FROM t1 WHERE b = c) |
|
1673 |
1 1 |
|
1674 |
INSERT INTO t1 VALUES (2, 1); |
|
1675 |
SELECT b c, (SELECT a FROM t1 WHERE b = c) |
|
1676 |
FROM t1; |
|
1677 |
ERROR 21000: Subquery returns more than 1 row |
|
1678 |
DROP TABLE t1; |