[mysql] How should I tackle --secure-file-priv in MySQL?

At macOS Catalina, I followed this steps to set secure_file_priv

1.Stop MySQL service

 sudo /usr/local/mysql/support-files/mysql.server stop

2.Restart MYSQL assigning --secure_file_priv system variables

sudo /usr/local/mysql/support-files/mysql.server start --secure-file-priv=YOUR_FILE_DIRECTORY

Note: Adding empty value fix the issue for me, and MYSQL will export data to directory /usr/local/mysql/data/YOUR_DB_TABLE/EXPORT_FILE

sudo /usr/local/mysql/support-files/mysql.server start --secure-file-priv=

Thanks