pub fn insert(conn: &Connection, mem: &Memory) -> Result<String>Expand description
Insert with upsert on title+namespace. Returns the ID (existing or new).
Ultrareview #352: collapses the previous INSERT/ON CONFLICT +
separate SELECT into a single INSERT ... RETURNING id. Another
concurrent writer could otherwise slot in between the two statements
and the SELECT would return the wrong row id. SQLite 3.35+
supports RETURNING; it executes atomically within the INSERT.