I'm looking for Esri documentation that explicitly states that ArcGIS only supports a single geometry column per table.
Example:
In an Oracle ST_GEOMETRY polyline FC, I could technically add an extra geometry column via SQL, such as a SDO_GEOMETRY polyline column (essentially a duplicate geometry column, but it would let me use Oracle Spatial's linear referencing functions). But if I did that, the assumption is: it would cause problems in ArcGIS.
Where can I find info about that rule in the docs? I've looked, but haven't found anything yet.