Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.
Original topic: TIDB 不兼容 MySQL sql 语法的help 命令
[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version]
[Reproduction Path] What operations were performed when the issue occurred
[Encountered Issue: Issue Phenomenon and Impact]
[Resource Configuration]
[TiDB Operator Version]:
[K8s Version]:
[Attachments: Screenshots/Logs/Monitoring]
If you find that TiDB is not compatible with MySQL SQL syntax’s help command to view command help, it feels like this implementation is not complicated at all.
MySQL help feels very convenient

The functionality is good, but I rarely use MySQL’s help…
It indeed doesn’t support it. However, using the MySQL client to connect to TiDB and checking the syntax with the help command in the console is not as convenient as directly asking GPT.
The help command relies on the content of the built-in MySQL library. Refer to:
https://mysql.net.cn/doc/refman/8.0/en/server-side-help-support.html
Consider whether it is due to insufficient user permissions.
It doesn’t have that MySQL feature.
Not exactly the same, but most of it works.
You are right, it seems that the integration complexity is not high.
Sometimes when I forget a command, I just use help. Scenario: Especially when I’m around others, using Baidu or GPT can be a bit awkward.
I haven’t used MySQL’s help much, but TiDB has done a lot of research on usability.
It can indeed be awkward for some people around, and in most cases, it’s really unnecessary, haha.
The functionality is good, but I rarely use MySQL’s help…
There are issues with using the HELP command in domestic MySQL databases.
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