[gdal-dev] Pass >1 geometry field via ODBC

[Square Cube]

I am using QGis to read records from a database via ODBC. Each record contains spatial information in the main table in WKT format, and the database also has a Geometry_Columns table that defines
f_geometry_column
f_table_catalogue
f_table_name
geometry_type

This works fine, and QGis is able to plot data straight from the database. 

The database was recently modified and now has two fields of spatial information (point and line) both in WKT format. I can get QGis to read either of these by modifying the single record in the 
Geometry_Columns table.  

If there are two records in the Geometry_Columns table, QGis will only read the WKT field defined in the first record. 

Is this a limitation of the ODBC driver? Or is there a specific way to pass >1 geometry field from a table to QGis via ODBC?

Grateful for any assistance