TiDB DM Upstream and Downstream Compatibility

Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: tidb dm 上下游兼容性

| username: pingliuju

[TiDB DM Usage Environment] Production Environment
[TiDB DM Version] 5.4 and above
[MySQL Version] 8.0.22 and above
[Reproduction Path]
[Encountered Problem: Problem Phenomenon and Impact] Currently, there is a need to merge sharded tables from upstream MySQL to downstream MySQL using DM.

May I ask if TiDB DM supports synchronizing from upstream MySQL to downstream MySQL and supports sharded table merging?

| username: xingzhenxiang | Original post link

I think doing it this way with 5.7 is fine, TiDB is compatible with version 5.7.

| username: tidb菜鸟一只 | Original post link

It seems that MySQL 8 doesn’t work.