select interval(55,10,20,30,40,50,60,70,80,90,100),interval(3,1,1+1,1+1+1+1),field("IBM","NCA","ICL","SUN","IBM","DIGITAL"),field("A","B","C"),elt(2,"ONE","TWO","THREE"),interval(0,1,2,3,4),elt(1,1,2,3)|0,elt(1,1.1,1.2,1.3)+0; interval(55,10,20,30,40,50,60,70,80,90,100) interval(3,1,1+1,1+1+1+1) field("IBM","NCA","ICL","SUN","IBM","DIGITAL") field("A","B","C") elt(2,"ONE","TWO","THREE") interval(0,1,2,3,4) elt(1,1,2,3)|0 elt(1,1.1,1.2,1.3)+0 5 2 4 0 TWO 0 1 1.1 explain extended select INTERVAL(55,10,20,30,40,50,60,70,80,90,100),interval(3,1,1+1,1+1+1+1),field("IBM","NCA","ICL","SUN","IBM","DIGITAL"),field("A","B","C"),elt(2,"ONE","TWO","THREE"),interval(0,1,2,3,4),elt(1,1,2,3)|0,elt(1,1.1,1.2,1.3)+0; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select interval((55,10,20,30,40,50,60,70,80,90,100)) AS `INTERVAL(55,10,20,30,40,50,60,70,80,90,100)`,interval((3,1,(1 + 1),(((1 + 1) + 1) + 1))) AS `interval(3,1,1+1,1+1+1+1)`,field('IBM','NCA','ICL','SUN','IBM','DIGITAL') AS `field("IBM","NCA","ICL","SUN","IBM","DIGITAL")`,field('A','B','C') AS `field("A","B","C")`,elt(2,'ONE','TWO','THREE') AS `elt(2,"ONE","TWO","THREE")`,interval((0,1,2,3,4)) AS `interval(0,1,2,3,4)`,(elt(1,1,2,3) | 0) AS `elt(1,1,2,3)|0`,(elt(1,1.1,1.2,1.3) + 0) AS `elt(1,1.1,1.2,1.3)+0` SELECT INTERVAL(13, 7, 14, 21, 28, 35, 42, 49, 56); INTERVAL(13, 7, 14, 21, 28, 35, 42, 49, 56) 1 SELECT INTERVAL(13, 7, 14, 21, 28, 35, 42, 49, 56, 77); INTERVAL(13, 7, 14, 21, 28, 35, 42, 49, 56, 77) 1 select find_in_set("b","a,b,c"),find_in_set("c","a,b,c"),find_in_set("dd","a,bbb,dd"),find_in_set("bbb","a,bbb,dd"); find_in_set("b","a,b,c") find_in_set("c","a,b,c") find_in_set("dd","a,bbb,dd") find_in_set("bbb","a,bbb,dd") 2 3 3 2 select find_in_set("d","a,b,c"),find_in_set("dd","a,bbb,d"),find_in_set("bb","a,bbb,dd"); find_in_set("d","a,b,c") find_in_set("dd","a,bbb,d") find_in_set("bb","a,bbb,dd") 0 0 0 select make_set(0,'a','b','c'),make_set(-1,'a','b','c'),make_set(1,'a','b','c'),make_set(2,'a','b','c'),make_set(1+2,concat('a','b'),'c'); make_set(0,'a','b','c') make_set(-1,'a','b','c') make_set(1,'a','b','c') make_set(2,'a','b','c') make_set(1+2,concat('a','b'),'c') a,b,c a b ab,c select make_set(NULL,'a','b','c'),make_set(1|4,'a',NULL,'c'),make_set(1+2,'a',NULL,'c'); make_set(NULL,'a','b','c') make_set(1|4,'a',NULL,'c') make_set(1+2,'a',NULL,'c') NULL a,c a select export_set(9,"Y","N","-",5),export_set(9,"Y","N"),export_set(9,"Y","N",""); export_set(9,"Y","N","-",5) export_set(9,"Y","N") export_set(9,"Y","N","") Y-N-N-Y-N Y,N,N,Y,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N YNNYNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN select elt(2,1),field(NULL,"a","b","c"); elt(2,1) field(NULL,"a","b","c") NULL 0 select field("b","a",NULL),field(1,0,NULL)+0,field(1.0,0.0,NULL)+0.0,field(1.0e1,0.0e1,NULL)+0.0e1; field("b","a",NULL) field(1,0,NULL)+0 field(1.0,0.0,NULL)+0.0 field(1.0e1,0.0e1,NULL)+0.0e1 0 0 0.0 0 select field(NULL,"a",NULL),field(NULL,0,NULL)+0,field(NULL,0.0,NULL)+0.0,field(NULL,0.0e1,NULL)+0.0e1; field(NULL,"a",NULL) field(NULL,0,NULL)+0 field(NULL,0.0,NULL)+0.0 field(NULL,0.0e1,NULL)+0.0e1 0 0 0.0 0 select find_in_set("","a,b,c"),find_in_set("","a,b,c,"),find_in_set("",",a,b,c"); find_in_set("","a,b,c") find_in_set("","a,b,c,") find_in_set("",",a,b,c") 0 4 1 select find_in_set("abc","abc"),find_in_set("ab","abc"),find_in_set("abcd","abc"); find_in_set("abc","abc") find_in_set("ab","abc") find_in_set("abcd","abc") 1 0 0 select interval(null, 1, 10, 100); interval(null, 1, 10, 100) -1 drop table if exists t1,t2; create table t1 (id int(10) not null unique); create table t2 (id int(10) not null primary key, val int(10) not null); insert into t1 values (1),(2),(4); insert into t2 values (1,1),(2,1),(3,1),(4,2); select one.id, elt(two.val,'one','two') from t1 one, t2 two where two.id=one.id; id elt(two.val,'one','two') 1 one 2 one 4 two select one.id, elt(two.val,'one','two') from t1 one, t2 two where two.id=one.id order by one.id; id elt(two.val,'one','two') 1 one 2 one 4 two drop table t1,t2; select find_in_set(binary 'a',binary 'A,B,C'); find_in_set(binary 'a',binary 'A,B,C') 0 select find_in_set('a',binary 'A,B,C'); find_in_set('a',binary 'A,B,C') 0 select find_in_set(binary 'a', 'A,B,C'); find_in_set(binary 'a', 'A,B,C') 0 select find_in_set('1','3,1,'); find_in_set('1','3,1,') 2 End of 4.1 tests SELECT INTERVAL(0.0, NULL); INTERVAL(0.0, NULL) 1 SELECT INTERVAL(0.0, CAST(NULL AS DECIMAL)); INTERVAL(0.0, CAST(NULL AS DECIMAL)) 1 SELECT INTERVAL(0.0, CAST(DATE(NULL) AS DECIMAL)); INTERVAL(0.0, CAST(DATE(NULL) AS DECIMAL)) 1 SELECT INTERVAL(0.0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL); INTERVAL(0.0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) 8 SELECT INTERVAL(0.0, CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL)); INTERVAL(0.0, CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL), CAST(NULL AS DECIMAL)) 8 SELECT INTERVAL(0.0, CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL)); INTERVAL(0.0, CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL), CAST(DATE(NULL) AS DECIMAL)) 8 End of 5.0 tests drop table if exists t1; create table t1 (f1 set('test1','test2','test3') character set utf8 default null) engine=myisam default charset=latin1; insert into t1 values (''),(null),(null),(''),(''),(''); select find_in_set(f1,f1) as a from t1,(select find_in_set(f1,f1) as b from t1) a; a 0 NULL NULL 0 0 0 0 NULL NULL 0 0 0 0 NULL NULL 0 0 0 0 NULL NULL 0 0 0 0 NULL NULL 0 0 0 0 NULL NULL 0 0 0 drop table t1;