Andreas <maps(dot)on(at)gmx(dot)net> writes:
> I'd like to identify and then merge records of e.g. 'google', 'gogle',
> 'guugle'
> Then I want to match abbrevations like 'A-Company Ltd.', 'a company
> ltd.', 'A-Company Limited'
> Is there a way to do this?
> It would be OK just to list candidats up to be manually checked afterwards.
There are some functions in contrib/fuzzystrmatch that seem like they'd
help you find candidate duplicates. contrib/pg_trgm and text search
might also offer promising tools.
What's really a duplicate sounds like a judgment call here, so you
probably shouldn't even think of automating it completely.
regards, tom lane