ILuffZhe opened a new pull request, #3271: URL: https://github.com/apache/calcite/pull/3271
CONCAT_WS function returns a string resulting from the concatenation, or joining, of two or more string values in an end-to-end manner. It separates those concatenated string values with the delimiter specified in the first function argument. It has two NULL semantics for the separator argument in different Database products: - Postgres and MySQL: it returns null when the separator is null, otherwise treats null as empty string - MSSQL: never returns null and treats null as empty string -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
