Wiki: document what and how "schema" changes are supported #63

snazy opened this Issue Jan 16, 2013 · 2 comments


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One of the reasons I would like to use Cassandra+playorm is that the "database" itself is not bound to a fixed schema. Means: I can add and remove fields and relations to/from my entities as required.

Can you document what kind of schema updates are possible and recommended and what schema updates are not possible and will cause conflicts (e.g. changing field types from string to int - resp. binary to string representation).

Even the possibility to change *ToOne to *ToMany relations and vice versa is interesting. But changing a *ToMany relation to a *ToOne relation will cause problems (which problems exactly??) when a single object as multiple references in the *ToMany.


yup, definitely need to add stuff around this, thanks for the ticket.



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