# # Test of different EXPLAINs --disable_warnings drop table if exists t1; --enable_warnings create table t1 (id int not null, str char(10), unique(str)); eval explain $FORMAT 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"; eval explain $FORMAT select * from t1 where str is null; eval explain $FORMAT select * from t1 where str="foo"; eval explain $FORMAT select * from t1 ignore key (str) where str="foo"; eval explain $FORMAT select * from t1 use key (str,str) where str="foo"; #The following should give errors --error 1176 eval explain $FORMAT select * from t1 use key (str,str,foo) where str="foo"; --error 1176 eval explain $FORMAT select * from t1 ignore key (str,str,foo) where str="foo"; drop table t1; --eval explain $FORMAT select 1 create table t1 (a int not null); eval explain $FORMAT select count(*) from t1; insert into t1 values(1); eval explain $FORMAT select count(*) from t1; insert into t1 values(1); eval explain $FORMAT select count(*) from t1; drop table t1; # # Bug #3403 Wrong encoding in EXPLAIN SELECT output # set names koi8r; create table Ô