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DEV-7221 from_days fails after null value

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This commit is contained in:
Alexander Barkov 2014-12-16 15:33:13 +04:00
parent 5257d71e0e
commit 357cb12d87
3 changed files with 45 additions and 4 deletions
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24
mysql-test/r/func_time.result
View File

@ -2561,3 +2561,27 @@ Warning 1292 Truncated incorrect time value: '9336:00:00'
Warning 1292 Truncated incorrect time value: '2952:00:00'
Warning 1292 Truncated incorrect time value: '2952:00:00'
DROP TABLE t1;
#
# MDEV-7221 from_days fails after null value
#
CREATE TABLE t1 (
id INT(11) NOT NULL PRIMARY KEY,
date1 DATE NULL DEFAULT NULL
);
INSERT INTO t1 VALUES (12, '2011-05-12');
INSERT INTO t1 VALUES (13, NULL);
INSERT INTO t1 VALUES (14, '2009-10-23');
INSERT INTO t1 VALUES (15, '2014-10-30');
INSERT INTO t1 VALUES (16, NULL);
INSERT INTO t1 VALUES (17, NULL);
INSERT INTO t1 VALUES (18, '2010-10-13');
SELECT a.id,a.date1,FROM_DAYS(TO_DAYS(a.date1)-10) as date2, DATE_ADD(a.date1,INTERVAL -10 DAY),TO_DAYS(a.date1)-10 FROM t1 a ORDER BY a.id;
id date1 date2 DATE_ADD(a.date1,INTERVAL -10 DAY) TO_DAYS(a.date1)-10
12 2011-05-12 2011-05-02 2011-05-02 734624
13 NULL NULL NULL NULL
14 2009-10-23 2009-10-13 2009-10-13 734058
15 2014-10-30 2014-10-20 2014-10-20 735891
16 NULL NULL NULL NULL
17 NULL NULL NULL NULL
18 2010-10-13 2010-10-03 2010-10-03 734413
DROP TABLE t1;

18
mysql-test/t/func_time.test
View File

@ -1561,3 +1561,21 @@ CREATE TABLE t1 ( d DATE, t TIME );
INSERT INTO t1 VALUES ('2008-12-05','22:34:09'),('2005-03-27','14:26:02');
SELECT EXTRACT(DAY_MINUTE FROM GREATEST(t,d)), GREATEST(t,d) FROM t1;
DROP TABLE t1;
--echo #
--echo # MDEV-7221 from_days fails after null value
--echo #
CREATE TABLE t1 (
id INT(11) NOT NULL PRIMARY KEY,
date1 DATE NULL DEFAULT NULL
);
INSERT INTO t1 VALUES (12, '2011-05-12');
INSERT INTO t1 VALUES (13, NULL);
INSERT INTO t1 VALUES (14, '2009-10-23');
INSERT INTO t1 VALUES (15, '2014-10-30');
INSERT INTO t1 VALUES (16, NULL);
INSERT INTO t1 VALUES (17, NULL);
INSERT INTO t1 VALUES (18, '2010-10-13');
SELECT a.id,a.date1,FROM_DAYS(TO_DAYS(a.date1)-10) as date2, DATE_ADD(a.date1,INTERVAL -10 DAY),TO_DAYS(a.date1)-10 FROM t1 a ORDER BY a.id;
DROP TABLE t1;

7
sql/item_timefunc.cc
View File

@ -1488,10 +1488,9 @@ String *Item_temporal_func::val_str(String *str)
bool Item_func_from_days::get_date(MYSQL_TIME *ltime, ulonglong fuzzy_date)
{
longlong value=args[0]->val_int();
if (args[0]->null_value)
return (null_value= 1);
if ((fuzzy_date & TIME_NO_ZERO_DATE) && value == 0)
return (null_value= 1);
if ((null_value= (args[0]->null_value ||
((fuzzy_date & TIME_NO_ZERO_DATE) && value == 0))))
return true;
bzero(ltime, sizeof(MYSQL_TIME));
if (get_date_from_daynr((long) value, &ltime->year, &ltime->month,
&ltime->day))