diff options
Diffstat (limited to 'mysql-test/r/ps.result')
| -rw-r--r-- | mysql-test/r/ps.result | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/mysql-test/r/ps.result b/mysql-test/r/ps.result index e0f230fa579..a4c16206b11 100644 --- a/mysql-test/r/ps.result +++ b/mysql-test/r/ps.result @@ -450,6 +450,27 @@ PREPARE stmt FROM 'UPDATE t1 AS P1 INNER JOIN (SELECT N FROM t1 GROUP BY N HAVIN EXECUTE stmt; DEALLOCATE PREPARE stmt; DROP TABLE t1; +prepare stmt from "select ? is null, ? is not null, ?"; +select @no_such_var is null, @no_such_var is not null, @no_such_var; +@no_such_var is null @no_such_var is not null @no_such_var +1 0 NULL +execute stmt using @no_such_var, @no_such_var, @no_such_var; +? is null ? is not null ? +1 0 NULL +set @var='abc'; +select @var is null, @var is not null, @var; +@var is null @var is not null @var +0 1 abc +execute stmt using @var, @var, @var; +? is null ? is not null ? +0 1 abc +set @var=null; +select @var is null, @var is not null, @var; +@var is null @var is not null @var +1 0 NULL +execute stmt using @var, @var, @var; +? is null ? is not null ? +1 0 NULL create table t1 (a varchar(20)); insert into t1 values ('foo'); prepare stmt FROM 'SELECT char_length (a) FROM t1'; |