domain.mysql
Database  domain  domain.txt __SQLDSN__
Database  domain  COLUMN_DEF   "domain=varchar(120) PRIMARY KEY"
Database  domain  DEFAULT_TYPE text

domain.txt
domain  aaaaaa  bbbbbb  cccccc  dddddd  eeeeee  ffffff  gggggg  hhhhhh

restart interchange get:
Configuring catalog currentcvs...Using MySQL, DSN=dbi:mysql:interch_mooo...table domain created: create table domain ( 
domain varchar(120) PRIMARY KEY,
aaaaaa text,
bbbbbb text,
cccccc text,
dddddd text,
eeeeee text,
ffffff gggggg,
hhhhhh text
)

<database gets created but without ffffff or gggggg fields>