我目前正在将数据库从本地MySQL主机迁移到RDS中的Aurora。
使用以下方法检查两个系统上的时区设置:
SELECT @@system_time_zone, @@global.time_zone, @@session.time_zone, NOW(), UTC_TIMESTAMP();
本地Mysql
+--------------------+--------------------+---------------------+---------------------+---------------------+
| @@system_time_zone | @@global.time_zone | @@session.time_zone | NOW() | UTC_TIMESTAMP() |
+--------------------+--------------------+---------------------+---------------------+---------------------+
| AEDT | SYSTEM | SYSTEM | 2017-12-07 15:05:29 | 2017-12-07 04:05:29 |
+--------------------+--------------------+---------------------+---------------------+---------------------+
RDS(极光)
+--------------------+--------------------+---------------------+---------------------+---------------------+
| @@system_time_zone | @@global.time_zone | @@session.time_zone | NOW() | UTC_TIMESTAMP() |
+--------------------+--------------------+---------------------+---------------------+---------------------+
| UTC | Australia/Sydney | Australia/Sydney | 2017-12-07 15:05:29 | 2017-12-07 04:05:29 |
+--------------------+--------------------+---------------------+---------------------+---------------------+
问题:
10月1日之后的时间戳(DST发生的时间)相等,但差异在一小时之前,见下文:
本地MySQL
+--------+---------------------+---------------------+
| id | created_at | updated_at |
+--------+---------------------+---------------------+
| 1 | 2017-08-21 05:08:02 | 2017-08-21 05:20:01 |
| 2 | 2017-08-21 05:08:02 | 2017-08-21 05:20:01 |
| 3 | 2017-08-21 05:08:02 | 2017-08-21 05:20:01 |
| 30000 | 2017-09-07 00:45:02 | 2017-09-07 01:10:03 |
| 98350 | 2017-09-30 19:15:03 | 2017-09-30 19:40:03 |
| 98357 | 2017-10-01 08:00:02 | 2017-10-01 08:25:03 |
| 98358 | 2017-10-01 08:00:02 | 2017-10-01 08:25:03 |
| 98359 | 2017-10-01 08:00:02 | 2017-10-01 08:25:03 |
| 100361 | 2017-10-01 19:05:03 | 2017-10-01 19:30:03 |
| 100411 | 2017-10-01 19:10:04 | 2017-10-01 19:35:03 |
| 100412 | 2017-10-01 19:10:04 | 2017-10-01 19:35:03 |
| 394449 | 2017-12-07 08:30:03 | 2017-12-07 09:00:04 |
| 394472 | 2017-12-07 08:30:03 | 2017-12-07 09:00:08 |
+--------+---------------------+---------------------+
RDS(极光)
+--------+---------------------+---------------------+
| id | created_at | updated_at |
+--------+---------------------+---------------------+
| 1 | 2017-08-21 06:08:02 | 2017-08-21 06:20:01 |
| 2 | 2017-08-21 06:08:02 | 2017-08-21 06:20:01 |
| 3 | 2017-08-21 06:08:02 | 2017-08-21 06:20:01 |
| 30000 | 2017-09-07 01:45:02 | 2017-09-07 02:10:03 |
| 98350 | 2017-09-30 20:15:03 | 2017-09-30 20:40:03 |
| 98357 | 2017-10-01 08:00:02 | 2017-10-01 08:25:03 |
| 98358 | 2017-10-01 08:00:02 | 2017-10-01 08:25:03 |
| 98359 | 2017-10-01 08:00:02 | 2017-10-01 08:25:03 |
| 100361 | 2017-10-01 19:05:03 | 2017-10-01 19:30:03 |
| 100411 | 2017-10-01 19:10:04 | 2017-10-01 19:35:03 |
| 100412 | 2017-10-01 19:10:04 | 2017-10-01 19:35:03 |
| 394449 | 2017-12-07 08:30:03 | 2017-12-07 09:00:04 |
| 394472 | 2017-12-07 08:30:03 | 2017-12-07 09:00:08 |
+--------+---------------------+---------------------+
问题: