5 drop table if exists t1;
12 select IF(0,"ERROR","this"),IF(1,"is","ERROR"),IF(NULL,"ERROR","a"),IF(1,2,3)|0,IF(1,2.0,3.0)+0 ;
15 # Test of IF and case-sensitiveness
17 CREATE TABLE t1 (st varchar(255) NOT NULL, u int(11) NOT NULL) ENGINE=MyISAM;
18 INSERT INTO t1 VALUES ('a',1),('A',1),('aa',1),('AA',1),('a',1),('aaa',0),('BBB',0);
19 select if(1,st,st) s from t1 order by s;
20 select if(u=1,st,st) s from t1 order by s;
21 select if(u=1,binary st,st) s from t1 order by s;
22 select if(u=1,st,binary st) s from t1 where st like "%a%" order by s;
23 explain extended select if(u=1,st,binary st) s from t1 where st like "%a%" order by s;
28 select nullif(u, 1) from t1;
29 explain extended select nullif(u, 1) from t1;
31 select nullif(1,'test');
36 select NULLIF(NULL,NULL), NULLIF(NULL,1), NULLIF(NULL,1.0), NULLIF(NULL,"test");
37 select NULLIF(1,NULL), NULLIF(1.0, NULL), NULLIF("test", NULL);
43 create table t1 (num double(12,2));
44 insert into t1 values (144.54);
45 select sum(if(num is null,0.00,num)) from t1;
47 create table t1 (x int, y int);
48 insert into t1 values (0,6),(10,16),(20,26),(30,10),(40,46),(50,56);
49 select min(if(y -x > 5,y,NULL)), max(if(y - x > 5,y,NULL)) from t1;
55 create table t1 (a int);
56 insert t1 values (1),(2);
57 select if(1>2,a,avg(a)) from t1;
61 # Bug #5595 NULLIF() IS NULL returns false if NULLIF() returns NULL
63 SELECT NULLIF(5,5) IS NULL, NULLIF(5,5) IS NOT NULL;
66 # Bug #9669 Ordering on IF function with FROM_UNIXTIME function fails
69 `id` int(11) NOT NULL ,
70 `date` int(10) default NULL,
71 `text` varchar(32) NOT NULL
73 INSERT INTO t1 VALUES (1,1110000000,'Day 1'),(2,1111000000,'Day 2'),(3,1112000000,'Day 3');
74 SELECT id, IF(date IS NULL, '-', FROM_UNIXTIME(date, '%d-%m-%Y')) AS date_ord, text FROM t1 ORDER BY date_ord ASC;
75 SELECT id, IF(date IS NULL, '-', FROM_UNIXTIME(date, '%d-%m-%Y')) AS date_ord, text FROM t1 ORDER BY date_ord DESC;
80 # Test for bug #11142: evaluation of NULLIF when the first argument is NULL
83 CREATE TABLE t1 (a CHAR(10));
84 INSERT INTO t1 VALUES ('aaa'), (NULL), (''), ('bbb');
86 SELECT a, NULLIF(a,'') FROM t1;
87 SELECT a, NULLIF(a,'') FROM t1 WHERE NULLIF(a,'') IS NULL;
94 # Bug #16272 IF function with decimal args can produce wrong result
96 create table t1 (f1 int, f2 int);
97 insert into t1 values(1,1),(0,0);
98 select f1, f2, if(f1, 40.0, 5.00) from t1 group by f1 order by f2;
102 # Bug#24532 (The return data type of IS TRUE is different from similar
105 # IF(x, unsigned, unsigned) should be unsigned.
108 select if(0, 18446744073709551610, 18446744073709551610);
112 # Bug #37662: nested if() inside sum() is parsed in exponential time
115 CREATE TABLE t1(a DECIMAL(10,3));
117 # check : should be fast. more than few secs means failure.
119 IF((ROUND(t1.a,2)=1), 2,
120 IF((ROUND(t1.a,2)=1), 2,
121 IF((ROUND(t1.a,2)=1), 2,
122 IF((ROUND(t1.a,2)=1), 2,
123 IF((ROUND(t1.a,2)=1), 2,
124 IF((ROUND(t1.a,2)=1), 2,
125 IF((ROUND(t1.a,2)=1), 2,
126 IF((ROUND(t1.a,2)=1), 2,
127 IF((ROUND(t1.a,2)=1), 2,
128 IF((ROUND(t1.a,2)=1), 2,
129 IF((ROUND(t1.a,2)=1), 2,
130 IF((ROUND(t1.a,2)=1), 2,
131 IF((ROUND(t1.a,2)=1), 2,
132 IF((ROUND(t1.a,2)=1), 2,
133 IF((ROUND(t1.a,2)=1), 2,
134 IF((ROUND(t1.a,2)=1), 2,
135 IF((ROUND(t1.a,2)=1), 2,
136 IF((ROUND(t1.a,2)=1), 2,
137 IF((ROUND(t1.a,2)=1), 2,
138 IF((ROUND(t1.a,2)=1), 2,
139 IF((ROUND(t1.a,2)=1), 2,
140 IF((ROUND(t1.a,2)=1), 2,
141 IF((ROUND(t1.a,2)=1), 2,
142 IF((ROUND(t1.a,2)=1), 2,
143 IF((ROUND(t1.a,2)=1), 2,
144 IF((ROUND(t1.a,2)=1), 2,
145 IF((ROUND(t1.a,2)=1), 2,
146 IF((ROUND(t1.a,2)=1), 2,
147 IF((ROUND(t1.a,2)=1), 2,
148 IF((ROUND(t1.a,2)=1), 2,0)))))))))))))))))))))))))))))) + 1
154 # Bug #40761: Assert on sum func on IF(..., CAST(longtext AS UNSIGNED), signed)
155 # (was: LEFT JOIN on inline view crashes server)
158 CREATE TABLE t1 (c LONGTEXT);
159 INSERT INTO t1 VALUES(1), (2), (3), (4), ('12345678901234567890');
161 SELECT * FROM (SELECT MAX(IF(1, CAST(c AS UNSIGNED), 0)) FROM t1) AS te;
162 SELECT * FROM (SELECT MAX(IFNULL(CAST(c AS UNSIGNED), 0)) FROM t1) AS te;
167 --echo End of 5.0 tests