#
# 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;
