Hi,

I'd like to find a way to archive versions of my data in an elegant and
extensible way.

When a user modifies certain entries I'd like the database to keep the
previous versions (or a limited, definable number of versions).
Wiki-style.

Would that be a good use of postgres' arrays? 

So I'm looking for "best practices" (tm) on that subject.

Thanks in advance for your suggestions,

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