base64 decode for column, like mysql FROM_BASE64(str)

General Questions A general question should be related to TDengine's user's manual, user experience, milestones, business cooperations etc. Before you ask a question, please:

1. Try searching for answers in the official documentation
2. Try searching in the existing issues on GitHub
3. Try searching on tech forums such as Stack Overflow, Quora, CSDN, v2ex etc.
4. Try using online searching engines such as Google, Bing, Baidu

If all the ways above couldn't help, please clearly and concisely describe what the question is. dear tdengine team: i find base64 function in this repo, https://github.com/search?q=repo%3Ataosdata%2FTDengine%20base64&type=code is there a function like mysql FROM_BASE64(str) that i can use select FROM_BASE64('${column_value}') from ${table_name} in tdengine