Proposal: LiveSQL

[dragonly]

Oracle provides a service called Live SQL. Users and DBAs can use Live SQL to experience their cutting edge features, learn tutorials, share common use cases, etc.

We CAN build this with TiDB too!

I propose a Live SQL alike feature, where users can learn TiDB and share use cases just in their VSCode.

Here's an incomplete possible sub-features:

• get hands-on experience of developing/experimental features (like UDF & TiGraph in Hackathon 2020, when code is in master)
• learn the best practices to write SQL to get the most out of TiDB
• login with github account, connect to AskTUG and share your tutorial with the TiDB community
• etc