Re: Detecting repeated phrase in a string

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От Andreas Joseph Krogh
Тема Re: Detecting repeated phrase in a string
Дата
Msg-id VisenaEmail.50.2affbb94dee70e79.17d9fba1d20@tc7-visena
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Ответ на Re: Detecting repeated phrase in a string  (Shaozhong SHI <shishaozhong@gmail.com>)
Ответы Re: Detecting repeated phrase in a string  ("Peter J. Holzer" <hjp-pgsql@hjp.at>)
Список pgsql-general
På torsdag 09. desember 2021 kl. 15:46:05, skrev Shaozhong SHI <shishaozhong@gmail.com>:
Hi, Peter,
 
How to define word boundary as either by using
^  , space, or $
 
So that the following can be done
 
fox fox is a repeat
 
foxfox is not a repeat but just one word.
 
Do you want repeated phrase (list of words) ore repeated words?
For repeated words (including unicode-chars) you can do:
 
(\b\p{L}+\b)(?:\s+\1)+
 
I'm not quite sure how to translate this to PG, but in JAVA it works.
 
--
Andreas Joseph Krogh
CTO / Partner - Visena AS
Mobile: +47 909 56 963
 
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