Worldmap panel with MySQL database

Hi,

I am trying to connect Worldmap panel/plugin with MySQL.

Could I use MySQL table with float numbers for longitude and latitude data?

My (unfortunately non-working) trial dashboard:
http://zodiac.hostetin.org:3000/d/EAefnYDik/world?orgId=2&from=1530536872593&to=1530709672593

Source MySQL table is here:
http://zodiac.hostetin.org/adminer/adminer-4.2.4.php?username=sosak_usr&db=sosak&select=view_geoTeploty_wgs

where Xwgs and Ywgs represent location fields.

What are right settings in Grafana to bring Worldmap into operation?