1 named indices (index representation needs an overhaul)
3 multiple primary keys (oracle, db2, others?)
5 foreign keys and other constraints
7 better documentation for Column::sql_add_column
9 Additional transformations (deleted, modified columns, added/modified/indices
10 (probably need em named first), added/deleted tables
12 port and test with additional databases
14 sql CREATE TABLE output should convert integers
15 (i.e. use DBI qw(:sql_types);) to local types using DBI->type_info plus a hash