我可以直接从 Vertica 提供地图层吗?

Can I Serve Map Layers Directly from Vertica?

在 Geoserver 中,可以使用 PostGIS 数据库作为矢量数据源。

是否有一种简单的方法以相同的方式连接到 Vertica 数据库?

不,目前没有。可以为 GeoServer 编写一个新的 GeoTools datastore that would read (and write) to a Vertica database. This tutorial takes you through the process. Once you have a new datastore it is simply a question of dropping the new jars into the GeoServer lib directory and restarting, you can also provide a custom datastore page