orbeon_form_definition vs orbeon_form_data tables

I have integrated orbeon with MySQL
According to table name

My form data (user entered data) is inserted in orbeon_form_data which is expected.
My form structure code is inserted in orbeon_form_data as well which I assume has to be inserted only in orbeon_form_definition,

Also when I modify form structure and save then a new row is created in  orbeon_form_data table however Form_version is not changed

Could you please explain what should I expect in
orbeon_form_definition  and
orbeon_form_data tables tables

When you edit form definitions with Form Builder, they are stored into `orbeon_form_data`.

When you *publish* a form definition it is copied over to `orbeon_form_definition`.

I hope this clarifies things.

-Erik