By default, Vantage imports and exports geometry data to and from the server as CLOB data in the well-known text (WKT) standard format for geospatial data. Client applications can insert CLOB values in WKT format into an ST_Geometry column for the geospatial subtypes that ST_Geometry can represent. Similarly, for queries that select data from an ST_Geometry column and export it to a client application, Vantage exports the data to the client application as CLOB values in WKT format.