public static String parseComment(List<String> specs) {
        return removeContinuousQuotes(parseAdjacentString(specs, COMMENT, false));
    }
parse column definitions to Column list.
this method is used for createTable operation.
@param sqlType the sql type map
@param columnDefinitions the column definition list
@return the column list
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/protocol/ddl/Utils/ColumnUtils.java