[Enhancement]: The MySQL data source version is lower than 5.7 and does not support structure synchronization.

[Jane201510]

What would you like to be added?

If the user's MySQL version is lower than 5.7, there are compatibility issues with table structure synchronization, which can lead to task failure. If the user selects to synchronize table structures when creating a new task, in order to ensure that the task can synchronize data normally, the task backend needs to maintain behavior that does not synchronize the structure.

若用户使用的 MySQL 版本低于 5.7 表结构同步存在不兼容问题，从而导致任务失败。若用户在新建任务时选择了同步表结构，为了保证任务能正常同步数据，任务后台需要保持为不同步结构的行为。

Why is this needed?

In order to ensure that the task can synchronize data normally