In a workbook, after creating a filter or using a function, some of the values in the workbook cells are being displayed as question marks symbols.
Datameer supports UTF-8 character encoding.
In MySQL, characters outside the Basic Multilingual Plane (BMP) compare as replacement characters and convert to '?' when converted to a Unicode character set that supports only BMP characters (UTF-8).
Check to your database character encoding setting:
SELECT DEFAULT_CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = <your Datameer database name>;
After ensuring the database character encoding setting is UTF-8, open your Datameer default.properties file.If the value returned is something other than "UTF-8", change the character encoding setting for your database to "UTF-8".
Set the property: