New features in WFS 2.0
The version 2.0 has been extended compared to the previous version 1.1 in their functions. The innovations include the introduction of a revised version of the Filter Encoding standards and Stored Queries and Joins (see. [GeoServer]).
FES 2.0 The new Filter Encoding Standard permits temporal filtering options.
Stored queries Stored queries are a way to store the server side (complex) queries. The corresponding stored query can be accessed via its ID.
Example: Deliver all the lakes in the district of Munich
In addition, placeholders can be defined that are occupied when calling with a value in the Stored Queries.
Example: Deliver all farms larger than $ AREA | $ AREA = 1000
To this end, the operations CreateStoredQuery, Drops Goals Query, ListStoredQueries, DescribeStoredQueries be provided.
Joins (Optional) About WFS queries can be realized joins, as known from spatial databases.
Example: Deliver all parks where there are lakes.