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authorunknown <dlenev@mysql.com>2004-12-16 16:31:50 +0300
committerunknown <dlenev@mysql.com>2004-12-16 16:31:50 +0300
commit59252717ace1439c9f75ac0311dd4e68d05497e1 (patch)
tree22957f403d1fae90ad99eced072996def0ae1104
parente1dade199b35fd68b58b86143460d20db283db96 (diff)
downloadmariadb-git-59252717ace1439c9f75ac0311dd4e68d05497e1.tar.gz
Fix for bug #7297 "Two digit year should be interpreted correctly
even with zero month and day" aka "Date decoding trouble" Two digit year should be interpreted correctly as year in 20th or 21st century even with zero month and day. Only exception should be zero date '00-00-00' or '00-00-00 00:00:00'. mysql-test/r/type_datetime.result: Added test for bug #7297 "Two digit year should be interpreted correctly even with zero month and day" mysql-test/t/type_datetime.test: Added test for bug #7297 "Two digit year should be interpreted correctly even with zero month and day" sql/time.cc: str_to_TIME(): Two digit year should be interpreted correctly as year in 20th or 21st century even with zero month and day. Only exception should be zero date '00-00-00' or '00-00-00 00:00:00'.
-rw-r--r--mysql-test/r/type_datetime.result10
-rw-r--r--mysql-test/t/type_datetime.test12
-rw-r--r--sql/time.cc2
3 files changed, 23 insertions, 1 deletions
diff --git a/mysql-test/r/type_datetime.result b/mysql-test/r/type_datetime.result
index 756deab80e0..fcadba016fa 100644
--- a/mysql-test/r/type_datetime.result
+++ b/mysql-test/r/type_datetime.result
@@ -102,3 +102,13 @@ insert into t1 values (now(), now());
select * from t1 where a is null or b is null;
a b
drop table t1;
+create table t1 (dt datetime);
+insert into t1 values ("12-00-00"), ("00-00-00 01:00:00");
+insert into t1 values ("00-00-00"), ("00-00-00 00:00:00");
+select * from t1;
+dt
+2012-00-00 00:00:00
+2000-00-00 01:00:00
+0000-00-00 00:00:00
+0000-00-00 00:00:00
+drop table t1;
diff --git a/mysql-test/t/type_datetime.test b/mysql-test/t/type_datetime.test
index 850e5238111..a7f9004d062 100644
--- a/mysql-test/t/type_datetime.test
+++ b/mysql-test/t/type_datetime.test
@@ -68,3 +68,15 @@ insert into t1 values (now(), now());
insert into t1 values (now(), now());
select * from t1 where a is null or b is null;
drop table t1;
+
+#
+# Test for bug #7297 "Two digit year should be interpreted correctly even
+# with zero month and day"
+#
+create table t1 (dt datetime);
+# These dates should be treated as dates in 21st century
+insert into t1 values ("12-00-00"), ("00-00-00 01:00:00");
+# Zero dates are still special :/
+insert into t1 values ("00-00-00"), ("00-00-00 00:00:00");
+select * from t1;
+drop table t1;
diff --git a/sql/time.cc b/sql/time.cc
index 38670db054f..d8b4b80e351 100644
--- a/sql/time.cc
+++ b/sql/time.cc
@@ -410,7 +410,7 @@ str_to_TIME(const char *str, uint length, TIME *l_time,bool fuzzy_date)
else
date[6]=0;
- if (year_length == 2 && i >=2 && (date[1] || date[2]))
+ if (year_length == 2 && not_zero_date)
date[0]+= (date[0] < YY_PART_YEAR ? 2000 : 1900);
number_of_fields=i;
while (i < 6)