How to find double entries - Mailing list pgsql-sql

From Andreas
Subject How to find double entries
Date
Msg-id 48056F5F.30507@gmx.net
Whole thread Raw
Responses Re: How to find double entries  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: How to find double entries  (Craig Ringer <craig@postnewspapers.com.au>)
Re: How to find double entries  (Volkan YAZICI <yazicivo@ttmail.com>)
Re: How to find double entries  (Jean-David Beyer <jeandavid8@verizon.net>)
List pgsql-sql
Hi,

how can I find double entries in varchar columns where the content is 
not 100% identical because of a spelling error or the person considered 
it "looked nicer" that way?

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.


Regards
Andreas


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