ganeshashree commented on code in PR #57311: URL: https://github.com/apache/spark/pull/57311#discussion_r3604576396
########## docs/sql-ref-syntax-ddl-comment.md: ########## @@ -0,0 +1,95 @@ +--- +layout: global +title: COMMENT ON +displayTitle: COMMENT ON +license: | + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +--- + +### Description + +The `COMMENT ON` statement sets or updates the comment on a database, a table, or +one or more table columns. Setting the comment to `NULL` removes it. Review Comment: Done. Scoped the removal statement to columns, and also narrowed the `comment` parameter description: for a column, `NULL` removes the comment and `''` sets an empty one; for a database or table, both `NULL` and `''` set an empty comment. -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
