//! Views that live in the opened file itself (phase 73, step 73.1; item
//! M90).
//!
//! A foreign view is not a DataCraft design: the file owns its SQL, the
//! port only lists it, reads its rows and feeds it to the SQL path.
//! Writes answer a precise `Unsupported`; the sidecar view designs stay
//! the writable authority (ADR-1, M93).
use ;
use crateFieldDef;
/// One native (file-owned) view of a data source.