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# 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));
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
!$1072 explain select * from t1 use key (str,str,foo) where str="foo";
!$1072 explain select * from t1 ignore key (str,str,foo) where str="foo";
drop table t1;

explain select 1;