1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
|
# test of problems with having (Reported by Mark Rogers)
#
--disable_warnings
drop table if exists t1,t2,t3;
--enable_warnings
create table t1 (a int);
select count(a) as b from t1 where a=0 having b > 0;
insert into t1 values (null);
select count(a) as b from t1 where a=0 having b > 0;
select count(a) as b from t1 where a=0 having b >=0;
explain extended select count(a) as b from t1 where a=0 having b >=0;
drop table t1;
#
# Test of problem with HAVING and AVG()
#
CREATE TABLE t1 (
raw_id int NOT NULL default '0',
chr_start int NOT NULL default '0',
chr_end int NOT NULL default '0',
raw_start int NOT NULL default '0',
raw_end int NOT NULL default '0',
raw_ori int NOT NULL default '0'
);
INSERT INTO t1 VALUES (469713,1,164123,1,164123,1),(317330,164124,317193,101,153170,1),(469434,317194,375620,101,58527,1),(591816,375621,484273,1,108653,1),(591807,484274,534671,91,50488,1),(318885,534672,649362,101,114791,1),(318728,649363,775520,102,126259,1),(336829,775521,813997,101,38577,1),(317740,813998,953227,101,139330,1),(1,813998,953227,101,139330,1);
CREATE TABLE t2 (
id int NOT NULL default '0',
contig_id int NOT NULL default '0',
seq_start int NOT NULL default '0',
seq_end int NOT NULL default '0',
strand int NOT NULL default '0',
KEY id (id)
);
INSERT INTO t2 VALUES (133195,469713,61327,61384,1),(133196,469713,64113,64387,1),(133197,1,1,1,0),(133197,1,1,1,-2);
SELECT e.id,
MIN( IF(sgp.raw_ori=1,
(e.seq_start+sgp.chr_start-sgp.raw_start),
(sgp.chr_start+sgp.raw_end-e.seq_end))) as start,
MAX( IF(sgp.raw_ori=1,
(e.seq_end+sgp.chr_start-sgp.raw_start),
(sgp.chr_start+sgp.raw_end-e.seq_start))) as end,
AVG(IF (sgp.raw_ori=1,e.strand,(-e.strand))) as chr_strand
FROM t1 sgp,
t2 e
WHERE sgp.raw_id=e.contig_id
GROUP BY e.id
HAVING chr_strand= -1 and end >= 0
AND start <= 999660;
drop table t1,t2;
#
# Test problem with having and MAX() IS NOT NULL
#
CREATE TABLE t1 (Fld1 int default NULL,Fld2 int default NULL);
INSERT INTO t1 VALUES (1,10),(1,20),(2,NULL),(2,NULL),(3,50);
select Fld1, max(Fld2) as q from t1 group by Fld1 having q is not null;
select Fld1, max(Fld2) from t1 group by Fld1 having max(Fld2) is not null;
select Fld1, max(Fld2) from t1 group by Fld1 having avg(Fld2) is not null;
select Fld1, max(Fld2) from t1 group by Fld1 having std(Fld2) is not null;
select Fld1, max(Fld2) from t1 group by Fld1 having variance(Fld2) is not null;
drop table t1;
#
# Test problem with count(distinct) in having
#
create table t1 (id int not null, qty int not null);
insert into t1 values (1,2),(1,3),(2,4),(2,5);
select id, sum(qty) as sqty from t1 group by id having sqty>2;
select sum(qty) as sqty from t1 group by id having count(id) > 0;
select sum(qty) as sqty from t1 group by id having count(distinct id) > 0;
drop table t1;
#
# Test case for Bug #4358 Problem with HAVING clause that uses alias from the
# select list and TEXT field
#
CREATE TEMPORARY TABLE t1 (
`id` bigint NOT NULL default '0',
`description` text
) ENGINE=MyISAM;
CREATE TEMPORARY TABLE t2 (
`id` bigint NOT NULL default '0',
`description` varchar(20)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1, 'test');
INSERT INTO t2 VALUES (1, 'test');
CREATE TEMPORARY TABLE t3 (
`id` bigint NOT NULL default '0',
`order_id` bigint NOT NULL default '0'
) ENGINE=MyISAM;
select
a.id, a.description,
count(b.id) as c
from t1 a left join t3 b on a.id=b.order_id
group by a.id, a.description
having (a.description is not null) and (c=0);
select
a.*,
count(b.id) as c
from t2 a left join t3 b on a.id=b.order_id
group by a.id, a.description
having (a.description is not null) and (c=0);
INSERT INTO t1 VALUES (2, 'test2');
select
a.id, a.description,
count(b.id) as c
from t1 a left join t3 b on a.id=b.order_id
group by a.id, a.description
having (a.description is not null) and (c=0);
drop table t1,t2,t3;
#
# Bug #14274: HAVING clause containing only set function
#
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (3), (4), (1), (3), (1);
SELECT SUM(a) FROM t1 GROUP BY a HAVING SUM(a)>0;
SELECT SUM(a) FROM t1 GROUP BY a HAVING SUM(a);
DROP TABLE t1;
#
# Bug #14927: HAVING clause containing constant false conjunct
#
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (1), (2), (1), (3), (2), (1);
SELECT a FROM t1 GROUP BY a HAVING a > 1;
SELECT a FROM t1 GROUP BY a HAVING 1 != 1 AND a > 1;
SELECT 0 AS x, a FROM t1 GROUP BY x,a HAVING x=1 AND a > 1;
EXPLAIN SELECT a FROM t1 GROUP BY a HAVING 1 != 1 AND a > 1;
EXPLAIN SELECT 0 AS x, a FROM t1 GROUP BY x,a HAVING x=1 AND a > 1;
DROP table t1;
#
# Bug #29911: HAVING clause depending on constant table and evaluated to false
#
CREATE TABLE t1 (a int PRIMARY KEY);
CREATE TABLE t2 (b int PRIMARY KEY, a int);
CREATE TABLE t3 (b int, flag int);
INSERT INTO t1 VALUES (1);
INSERT INTO t2 VALUES (1,1), (2,1), (3,1);
INSERT INTO t3(b,flag) VALUES (2, 1);
SELECT t1.a
FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b
GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0;
SELECT DISTINCT t1.a, MAX(t3.flag)
FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b
GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0;
SELECT DISTINCT t1.a
FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b
GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0;
DROP TABLE t1,t2,t3;
# End of 4.1 tests
#
# Tests for WL#1972 CORRECT EVALUATION OF COLUMN REFERENCES IN THE HAVING CLAUSE
# Per the SAP VERI tests and WL#1972, MySQL must ensure that HAVING can
# correctly evaluate column references from the GROUP BY clause, even if the
# same references are not also found in the select list.
#
# set global sql_mode='ansi';
# set session sql_mode='ansi';
create table t1 (col1 int, col2 varchar(5), col_t1 int);
create table t2 (col1 int, col2 varchar(5), col_t2 int);
create table t3 (col1 int, col2 varchar(5), col_t3 int);
insert into t1 values(10,'hello',10);
insert into t1 values(20,'hello',20);
insert into t1 values(30,'hello',30);
insert into t1 values(10,'bye',10);
insert into t1 values(10,'sam',10);
insert into t1 values(10,'bob',10);
insert into t2 select * from t1;
insert into t3 select * from t1;
select count(*) from t1 group by col1 having col1 = 10;
select count(*) as count_col1 from t1 group by col1 having col1 = 10;
select count(*) as count_col1 from t1 as tmp1 group by col1 having col1 = 10;
select count(*) from t1 group by col2 having col2 = 'hello';
--error ER_BAD_FIELD_ERROR
select count(*) from t1 group by col2 having col1 = 10;
select col1 as count_col1 from t1 as tmp1 group by col1 having col1 = 10;
select col1 as count_col1 from t1 as tmp1 group by col1 having count_col1 = 10;
select col1 as count_col1 from t1 as tmp1 group by count_col1 having col1 = 10;
# ANSI: should return SQLSTATE 42000 Syntax error or access violation
# MySQL: returns 10 - because of GROUP BY name resolution
select col1 as count_col1 from t1 as tmp1 group by count_col1 having count_col1 = 10;
# ANSI: should return SQLSTATE 42000 Syntax error or access violation
# MySQL: returns 10 - because of GROUP BY name resolution
select col1 as count_col1,col2 from t1 as tmp1 group by col1,col2 having col1 = 10;
select col1 as count_col1,col2 from t1 as tmp1 group by col1,col2 having count_col1 = 10;
select col1 as count_col1,col2 from t1 as tmp1 group by col1,col2 having col2 = 'hello';
select col1 as count_col1,col2 as group_col2 from t1 as tmp1 group by col1,col2 having group_col2 = 'hello';
--error ER_PARSE_ERROR
select sum(col1) as co12 from t1 group by col2 having col2 10;
select sum(col1) as co2, count(col2) as cc from t1 group by col1 having col1 =10;
--error ER_BAD_FIELD_ERROR
select t2.col2 from t2 group by t2.col1, t2.col2 having t1.col1 <= 10;
#
# queries with nested sub-queries
#
# the having column is resolved in the same query
select t1.col1 from t1
where t1.col2 in
(select t2.col2 from t2
group by t2.col1, t2.col2 having t2.col1 <= 10);
select t1.col1 from t1
where t1.col2 in
(select t2.col2 from t2
group by t2.col1, t2.col2
having t2.col1 <=
(select min(t3.col1) from t3));
# the having column is resolved in the SELECT clause of the outer query -
# works in ANSI
select t1.col1 from t1
where t1.col2 in
(select t2.col2 from t2
group by t2.col1, t2.col2 having t1.col1 <= 10);
# the having column is resolved in the SELECT clause of the outer query -
# error in ANSI, works with MySQL extension
select t1.col1 as tmp_col from t1
where t1.col2 in
(select t2.col2 from t2
group by t2.col1, t2.col2 having tmp_col <= 10);
# the having column is resolved in the FROM clause of the outer query -
# works in ANSI
select t1.col1 from t1
where t1.col2 in
(select t2.col2 from t2
group by t2.col1, t2.col2 having col_t1 <= 10);
# Item_field must be resolved in the same way as Item_ref
select sum(col1) from t1
group by col_t1
having (select col_t1 from t2 where col_t1 = col_t2 order by col_t2 limit 1);
# nested queries with HAVING, inner having column resolved in outer FROM clause
# the outer having column is not referenced in GROUP BY which results in an error
--error ER_BAD_FIELD_ERROR
select t1.col1 from t1
where t1.col2 in
(select t2.col2 from t2
group by t2.col1, t2.col2 having col_t1 <= 10)
having col_t1 <= 20;
# both having columns are resolved in the GROUP clause of the outer query
select t1.col1 from t1
where t1.col2 in
(select t2.col2 from t2
group by t2.col1, t2.col2 having col_t1 <= 10)
group by col_t1
having col_t1 <= 20;
#
# nested HAVING clauses
#
# non-correlated subqueries
select col_t1, sum(col1) from t1
group by col_t1
having col_t1 > 10 and
exists (select sum(t2.col1) from t2
group by t2.col2 having t2.col2 > 'b');
# correlated subqueries - inner having column 't1.col2' resolves to
# the outer FROM clause, which cannot be used because the outer query
# is grouped
--error ER_BAD_FIELD_ERROR
select sum(col1) from t1
group by col_t1
having col_t1 in (select sum(t2.col1) from t2
group by t2.col2, t2.col1 having t2.col1 = t1.col1);
# correlated subqueries - inner having column 'col_t1' resolves to
# the outer GROUP clause
select sum(col1) from t1
group by col_t1
having col_t1 in (select sum(t2.col1) from t2
group by t2.col2, t2.col1 having t2.col1 = col_t1);
#
# queries with joins and ambiguous column names
#
--error ER_NON_UNIQ_ERROR
select t1.col1, t2.col1 from t1, t2 where t1.col1 = t2.col1
group by t1.col1, t2.col1 having col1 = 2;
--error ER_NON_UNIQ_ERROR
select t1.col1*10+t2.col1 from t1,t2 where t1.col1=t2.col1
group by t1.col1, t2.col1 having col1 = 2;
drop table t1, t2, t3;
# More queries to test ANSI compatibility
create table t1 (s1 int);
insert into t1 values (1),(2),(3);
select count(*) from t1 group by s1 having s1 is null;
# prepared statements prints warnings too early
--disable_ps_protocol
select s1*0 as s1 from t1 group by s1 having s1 <> 0;
--enable_ps_protocol
# ANSI requires: 3 rows
# MySQL returns: 0 rows - because of GROUP BY name resolution
select s1*0 from t1 group by s1 having s1 = 0;
select s1 from t1 group by 1 having 1 = 0;
select count(s1) from t1 group by s1 having count(1+1)=2;
# ANSI requires: 3 rows
# MySQL returns: 0 rows - because of GROUP BY name resolution
select count(s1) from t1 group by s1 having s1*0=0;
-- error 1052
select * from t1 a, t1 b group by a.s1 having s1 is null;
# ANSI requires: 0 rows
# MySQL returns:
# "ERROR 1052 (23000): Column 's1' in having clause is ambiguous"
# I think the column is ambiguous in ANSI too.
# It is the same as:
# select a.s1, b.s1 from t1 a, t1 b group by a.s1 having s1 is null;
# currently we first check SELECT, thus s1 is ambiguous.
drop table t1;
create table t1 (s1 char);
insert into t1 values ('b'),('y');
select s1,count(s1) from t1 group by s1 having s1 = 'y';
# ANSI requires: 1 row, with count(s1) = 2
# MySQL returns: 1 row, with count(s1) = 1
drop table t1;
#
# Bug #15917: unexpected complain for a name in having clause
# when the server is run on Windows or with --lower-case-table-names=1
#
--disable_warnings
DROP SCHEMA IF EXISTS HU;
--enable_warnings
CREATE SCHEMA HU ;
USE HU ;
CREATE TABLE STAFF
(EMPNUM CHAR(3) NOT NULL UNIQUE,
EMPNAME CHAR(20),
GRADE DECIMAL(4),
CITY CHAR(15));
CREATE TABLE PROJ
(PNUM CHAR(3) NOT NULL UNIQUE,
PNAME CHAR(20),
PTYPE CHAR(6),
BUDGET DECIMAL(9),
CITY CHAR(15));
INSERT INTO STAFF VALUES ('E1','Alice',12,'Deale');
INSERT INTO STAFF VALUES ('E2','Betty',10,'Vienna');
INSERT INTO STAFF VALUES ('E3','Carmen',13,'Vienna');
INSERT INTO STAFF VALUES ('E4','Don',12,'Deale');
INSERT INTO STAFF VALUES ('E5','Ed',13,'Akron');
INSERT INTO PROJ VALUES ('P1','MXSS','Design',10000,'Deale');
INSERT INTO PROJ VALUES ('P2','CALM','Code',30000,'Vienna');
INSERT INTO PROJ VALUES ('P3','SDP','Test',30000,'Tampa');
INSERT INTO PROJ VALUES ('P4','SDP','Design',20000,'Deale');
INSERT INTO PROJ VALUES ('P5','IRM','Test',10000,'Vienna');
INSERT INTO PROJ VALUES ('P6','PAYR','Design',50000,'Deale');
SELECT EMPNUM, GRADE*1000
FROM HU.STAFF WHERE GRADE * 1000 >
ANY (SELECT SUM(BUDGET) FROM HU.PROJ
GROUP BY CITY, PTYPE
HAVING HU.PROJ.CITY = HU.STAFF.CITY);
DROP SCHEMA HU;
USE test;
#
# Bug#18739: non-standard HAVING extension was allowed in strict ANSI sql mode.
#
create table t1(f1 int);
select f1 from t1 having max(f1)=f1;
select f1 from t1 group by f1 having max(f1)=f1;
select f1 from t1 having max(f1)=f1;
select f1 from t1 group by f1 having max(f1)=f1;
drop table t1;
|