why not just use the dump feature in sqlite/mysql/pgsql

all dbs have a 'dump' function/app that exports the contents to a
generic format that can be read/altered to be read by another db

going to pgsql you might have to run it through a filtering app, but
mysql is pretty lax (just test your data to make sure its all there.
probably best to run in 'traditional sql' mode if you have 5.0 )

> I need to bear in mind here that when I put the data back in (with a
> simple script) some of the class names or field names might have
> changed, so I will need another nested dictionary (?) of changes that
> will override the other dictionary.

Thats a nightmare.  backup your db on box 1, coerce your data into the
new schema, and export to ascii with a dump utility. (when i do stuff
like that, i keep a log of all the necessary sql commands)  making
filters to change data will just be a nightmare.


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