diff options
Diffstat (limited to 'mysql-test/r/type_date.result')
| -rw-r--r-- | mysql-test/r/type_date.result | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/mysql-test/r/type_date.result b/mysql-test/r/type_date.result index 54f2aa91f2c..55de3b39f2d 100644 --- a/mysql-test/r/type_date.result +++ b/mysql-test/r/type_date.result @@ -439,6 +439,41 @@ select 1 from t1 as t1_0 inner join t1 as t2 on (t1_0.a <=> now()) join t1 on 1; 1 drop table t1; # +# MDEV-9521 Least function returns 0000-00-00 for null date columns instead of null +# +CREATE TABLE t1 ( +id BIGINT NOT NULL, +date_debut DATE NOT NULL, +date_fin DATE DEFAULT NULL); +CREATE TABLE t2( +id BIGINT NOT NULL, +date_debut DATE NOT NULL, +date_fin DATE DEFAULT NULL); +INSERT INTO t1 VALUES (1,'2016-01-01','2016-01-31'); +INSERT INTO t1 VALUES (2,'2016-02-01',null); +INSERT INTO t1 VALUES (3,'2016-03-01','2016-03-31'); +INSERT INTO t1 VALUES (4,'2016-04-01',null); +INSERT INTO t2 VALUES (1,'2016-01-01','2016-01-31'); +INSERT INTO t2 VALUES (2,'2016-02-01','2016-01-28'); +INSERT INTO t2 VALUES (3,'2016-03-01',null); +INSERT INTO t2 VALUES (4,'2016-04-01',null); +SELECT t1.id, +GREATEST(t2.date_debut, t1.date_debut) AS date_debut, +LEAST(IFNULL(t2.date_fin, IFNULL(t1.date_fin, NULL)), +IFNULL(t1.date_fin, IFNULL(t2.date_fin, NULL))) AS date_fin +FROM t1 LEFT JOIN t2 ON (t1.id=t2.id); +id date_debut date_fin +1 2016-01-01 2016-01-31 +2 2016-02-01 2016-01-28 +3 2016-03-01 2016-03-31 +4 2016-04-01 NULL +DROP TABLE t1,t2; +SELECT +LEAST(COALESCE(DATE(NULL), DATE(NULL)), COALESCE(DATE(NULL), DATE(NULL))) AS d0, +LEAST(IFNULL(DATE(NULL), DATE(NULL)), IFNULL(DATE(NULL), DATE(NULL))) AS d1; +d0 d1 +NULL NULL +# # MDEV-9511 Valgrind warnings 'Invalid read' in Field_newdate::cmp and Field_newdate::val_str # CREATE TABLE t1 (f1 DATE, f2 VARCHAR(1)); |