# # Testing if SET and similar functions # 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; 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; 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"); select find_in_set("d","a,b,c"),find_in_set("dd","a,bbb,d"),find_in_set("bb","a,bbb,dd"); 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'); select make_set(NULL,'a','b','c'),make_set(1|4,'a',NULL,'c'),make_set(1+2,'a',NULL,'c'); select export_set(9,"Y","N","-",5),export_set(9,"Y","N"),export_set(9,"Y","N",""); # # Wrong usage of functions # select elt(2,1),field(NULL,"a","b","c"); select find_in_set("","a,b,c"),find_in_set("","a,b,c,"),find_in_set("",",a,b,c"); select find_in_set("abc","abc"),find_in_set("ab","abc"),find_in_set("abcd","abc"); select interval(null, 1, 10, 100); # # test for a bug with elt() # --disable_warnings drop table if exists t1,t2; --enable_warnings 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; select one.id, elt(two.val,'one','two') from t1 one, t2 two where two.id=one.id order by one.id; drop table t1,t2; # some more INTERVAL tests SELECT INTERVAL(13, 7, 14, 21, 28, 35, 42, 49, 56); SELECT INTERVAL(13, 7, 14, 21, 28, 35, 42, 49, 56, 77);