On Apr 15, 2008, at 11:23 PM, Tom Lane wrote:
What's really a duplicate sounds like a judgment call here, so you probably shouldn't even think of automating it completely.
I did a consulting gig about 10 years ago for a company that made software to normalize street addresses and names. Literally dozens of people worked there, and that was their primary software product. It is definitely not a trivial task, as the rules can be extremely complex.
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