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Bug #29536: timestamp inconsistent in replication around 1970

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MySQL replicates the time zone only when operations that involve
it are performed. This is controlled by a flag. But this flag
is set only on successful operation.
The flag must be set also when there is an error that involves
a timezone (so the master would replicate the error to the slaves). 

Fixed by moving the setting of the flag before the operation
(so it apples to errors as well).


mysql-test/r/rpl_timezone.result:
  Bug #29536: test case
mysql-test/t/rpl_timezone.test:
  Bug #29536: test case
sql/field.cc:
  Bug #29536: move setting of the flag before the operation
  (so it apples to errors as well).
sql/time.cc:
  Bug #29536: move setting of the flag before the operation
  (so it apples to errors as well).
This commit is contained in:
unknown 2007-08-06 04:57:28 -07:00
parent 71c3c0cfd5
commit 1f83b35181
4 changed files with 49 additions and 6 deletions
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18
mysql-test/r/rpl_timezone.result
View File

@ -130,3 +130,21 @@ t
2005-01-01 08:00:00
drop table t1, t2;
set global time_zone= @my_time_zone;
End of 4.1 tests
CREATE TABLE t1 (a INT, b TIMESTAMP);
INSERT INTO t1 VALUES (1, NOW());
SET @@session.time_zone='Japan';
UPDATE t1 SET b= '1970-01-01 08:59:59' WHERE a= 1;
Warnings:
Warning 1264 Out of range value adjusted for column 'b' at row 1
SELECT * FROM t1 ORDER BY a;
a b
1 0000-00-00 00:00:00
SET @@session.time_zone='Japan';
SELECT * FROM t1 ORDER BY a;
a b
1 0000-00-00 00:00:00
SET @@session.time_zone = default;
DROP TABLE t1;
SET @@session.time_zone = default;
End of 5.0 tests

29
mysql-test/t/rpl_timezone.test
View File

@ -126,8 +126,33 @@ connection master;
drop table t1, t2;
sync_slave_with_master;
# End of 4.1 tests
# Restore original timezone
connection master;
set global time_zone= @my_time_zone;
--echo End of 4.1 tests
#
# Bug #29536: timestamp inconsistent in replication around 1970
#
connection master;
CREATE TABLE t1 (a INT, b TIMESTAMP);
INSERT INTO t1 VALUES (1, NOW());
SET @@session.time_zone='Japan';
UPDATE t1 SET b= '1970-01-01 08:59:59' WHERE a= 1;
SELECT * FROM t1 ORDER BY a;
sync_slave_with_master;
SET @@session.time_zone='Japan';
# must procdure the same result as the SELECT on the master
SELECT * FROM t1 ORDER BY a;
SET @@session.time_zone = default;
connection master;
DROP TABLE t1;
SET @@session.time_zone = default;
--echo End of 5.0 tests

6
sql/field.cc
View File

@ -4462,6 +4462,7 @@ longlong Field_timestamp::val_int(void)
MYSQL_TIME time_tmp;
THD *thd= table ? table->in_use : current_thd;
thd->time_zone_used= 1;
#ifdef WORDS_BIGENDIAN
if (table && table->s->db_low_byte_first)
temp=uint4korr(ptr);
@ -4473,7 +4474,6 @@ longlong Field_timestamp::val_int(void)
return(0); /* purecov: inspected */
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp, (my_time_t)temp);
thd->time_zone_used= 1;
return time_tmp.year * LL(10000000000) + time_tmp.month * LL(100000000) +
time_tmp.day * 1000000L + time_tmp.hour * 10000L +
@ -4492,6 +4492,7 @@ String *Field_timestamp::val_str(String *val_buffer, String *val_ptr)
to= (char*) val_buffer->ptr();
val_buffer->length(field_length);
thd->time_zone_used= 1;
#ifdef WORDS_BIGENDIAN
if (table && table->s->db_low_byte_first)
temp=uint4korr(ptr);
@ -4507,7 +4508,6 @@ String *Field_timestamp::val_str(String *val_buffer, String *val_ptr)
val_buffer->set_charset(&my_charset_bin); // Safety
thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,(my_time_t)temp);
thd->time_zone_used= 1;
temp= time_tmp.year % 100;
if (temp < YY_PART_YEAR - 1)
@ -4557,6 +4557,7 @@ bool Field_timestamp::get_date(MYSQL_TIME *ltime, uint fuzzydate)
{
long temp;
THD *thd= table ? table->in_use : current_thd;
thd->time_zone_used= 1;
#ifdef WORDS_BIGENDIAN
if (table && table->s->db_low_byte_first)
temp=uint4korr(ptr);
@ -4572,7 +4573,6 @@ bool Field_timestamp::get_date(MYSQL_TIME *ltime, uint fuzzydate)
else
{
thd->variables.time_zone->gmt_sec_to_TIME(ltime, (my_time_t)temp);
thd->time_zone_used= 1;
}
return 0;
}

2
sql/time.cc
View File

@ -228,11 +228,11 @@ my_time_t TIME_to_timestamp(THD *thd, const MYSQL_TIME *t, my_bool *in_dst_time_
my_time_t timestamp;
*in_dst_time_gap= 0;
thd->time_zone_used= 1;
timestamp= thd->variables.time_zone->TIME_to_gmt_sec(t, in_dst_time_gap);
if (timestamp)
{
thd->time_zone_used= 1;
return timestamp;
}