emptyOVO opened a new issue, #11222: URL: https://github.com/apache/inlong/issues/11222
### Description * parent issue: #10796 * from flinksql: https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/functions/systemfunctions/#string-functions * JSON_STRING(value)--Serializes a value into JSON. This function returns a JSON string containing the serialized value. If the value is NULL, the function returns NULL. ### Use case ``` -- NULL JSON_STRING(NULL) -- '1' JSON_STRING(1) -- 'true' JSON_STRING(TRUE) -- '"Hello, World!"' JSON_STRING('Hello, World!') ``` ### Are you willing to submit PR? - [X] Yes, I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@inlong.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org