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-rw-r--r--mysql-test/r/null.result11
1 files changed, 10 insertions, 1 deletions
diff --git a/mysql-test/r/null.result b/mysql-test/r/null.result
index bd90b3fe3f3..ced80a033e7 100644
--- a/mysql-test/r/null.result
+++ b/mysql-test/r/null.result
@@ -167,11 +167,20 @@ insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
insert into t1 select i*2 from t1;
+insert into t1 values(null);
explain select * from t1 where i=2 or i is null;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref_or_null i i 5 const 10 Using where; Using index
+select count(*) from t1 where i=2 or i is null;
+count(*)
+10
alter table t1 change i i int not null;
+Warnings:
+Warning 1265 Data truncated for column 'i' at row 513
explain select * from t1 where i=2 or i is null;
id select_type table type possible_keys key key_len ref rows Extra
-1 SIMPLE t1 ref i i 4 const 7 Using where; Using index
+1 SIMPLE t1 ref i i 4 const 8 Using index
+select count(*) from t1 where i=2 or i is null;
+count(*)
+9
drop table t1;