Load geometries from a full query and return a Spatial* object
pgGetGeomQ(conn, query, name = NULL, ...)character, a full SQL query including a geometry column.
optional character string specifying
a PostgreSQL schema and view name (e.g., name = c("schema","view"))
to save the query as. If NULL, a temporary view ".rpostgis_TEMPview" is used
temporarily (only within the function scope).
For pgGetGeomQ, other arguments as in pgGetGeom