buptljy commented on a change in pull request #9843: [FLINK-14296] [Table SQL] Use Optional for optional parameters in parser module URL: https://github.com/apache/flink/pull/9843#discussion_r335294243
########## File path: flink-table/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/ddl/SqlCreateTable.java ########## @@ -129,7 +133,7 @@ public boolean isIfNotExists() { public void validate() throws SqlValidateException { Set<String> columnNames = new HashSet<>(); - if (columnList != null) { + if (columnList.size() > 0) { Review comment: @dawidwys Yes. I leave them here just for a better code readability and I don't mind removing them here. Do you want to remove them? ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services