Takahiro Itagaki <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp> wrote:
> This feature would be useful for migration
> from other DBMSes that have non-standard data types.
Domains can indeed be useful to allow migration -- if they are used
as intended. If you identify all of the unique data domains on your
source platform and define the columns with domains rather than bare
types, you can easily identify the appropriate mapping on some other
platform and declare the appropriate domains there. Migration is
then easy.
-Kevin