Reminders to myself or whoever else ever looks in here...

SQLite needs some heavy refactoring, the subroutines are becoming too complex to understand easily.

Relationship-building needs to be refactored into a seperate module to share with SQLT.

Relationship stuff:
   Fix multiple rels between same pair of tables
   If local column is UNIQUE or PK, use has_one() for relation?
   Re-scan relations/tables after initial relation setup to find ->many_to_many() relations to be set up?
   Check NULLability of columns involved in the relationship, which might suggest a more optimal non-default -join-type?
   While scanning for many-to-many, scan for implied rels as well? (if foo->belongs_to('bar') and baz->belongs_to('bar'), does that impliy foo->might_have('baz') and the reverse?)
...