#
# Test of different EXPLAIN's

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (id int not null, str char(10), unique(str));
explain select * from t1;
insert into t1 values (1, null),(2, null),(3, "foo"),(4, "bar");
select * from t1 where str is null;
select * from t1 where str="foo";
explain select * from t1 where str is null;
explain select * from t1 where str="foo";
explain select * from t1 ignore key (str) where str="foo";
explain select * from t1 use key (str,str) where str="foo";

#The following should give errors
--error 1176
explain select * from t1 use key (str,str,foo) where str="foo";
--error 1176
explain select * from t1 ignore key (str,str,foo) where str="foo";
drop table t1;

explain select 1;

create table t1 (a int not null);
explain select count(*) from t1;
insert into t1 values(1);
explain select count(*) from t1;
insert into t1 values(1);
explain select count(*) from t1;
drop table t1;

#
# Bug #3403 Wrong encoding in EXPLAIN SELECT output
#
set names koi8r;
create table ��� (���0 int, ���1 int, key ���0 (���0), key ���01 (���0,���1));
insert into ��� (���0) values (1);
insert into ��� (���0) values (2);
explain select ���0 from ��� where ���0=1;
drop table ���;
set names latin1;

# End of 4.1 tests


#
# Bug#15463: EXPLAIN SELECT..INTO hangs the client (QB, command line)
#
select 3 into @v1;
explain select 3 into @v1;

#
# Bug#22331: Wrong WHERE in EXPLAIN EXTENDED when all expressions were
#            optimized away.
#
create table t1(f1 int, f2 int);
insert into t1 values (1,1);
create view v1 as select * from t1 where f1=1;
explain extended select * from v1 where f2=1;
explain extended select * from t1 where 0;
explain extended select * from t1 where 1;
explain extended select * from t1 having 0;
explain extended select * from t1 having 1;
drop table t1;

# End of 5.0 tests.