There are two different types of union tables: proprietary and common.
Proprietary union tables are union tables created by a user for specific purposes and can be used only inside their domain of creation. Learn more about union table creation here.
Common union tables are union tables that are available in all domains and collect information for monitoring purposes. There are several technologies for which, regardless of brand, the log events contain very similar, or identical fields. When this is the case, as with web servers, firewalls, proxies, and several other technologies, Devo automatically generates a union table that contains the events from several different data sources. Union tables are indicated in the finder by the union icon. Hover over the icon to see a full list of the tables that the union table will collect if available in the deployment.
In this article, we will focus on the common union tables you may find in your finder. In the table below, find a list with all the available custom tables in Devo, and the source tables they draw data from.