How about split up the value into individual words and keep their orders? add words up to form individual phrase and ensure that each phrase only consists unique/distinct words count repeated phrases afterward
How about this? Regards, David On Tue, 25 Jan 2022 at 17:22, Karsten Hilbert <karsten.hilb...@gmx.net> wrote: > > There is a short of a function in the standard Postgres to do the > following: > > > > it is easy to count the number of occurrence of words, but it is rather > difficult to count the number of occurrence of phrases. > > > > For instance: > > > > A cell of value: 'Hello World' means 1 occurrence a phrase. > > > > A cell of value: 'Hello World World Hello' means no occurrence of any > repeated phrase. > > > > But, A cell of value: 'Hello World World Hello Hello World' means 2 > occurrences of 'Hello World'. > > > > 'The City of London, London' also has no occurrences of any repeated > phrase. > > > > Anyone has got such a function to check out the number of occurrence of > any repeated phrases? > > For that to become answerable you may want to define what to > do when facing ambiguity. > > Best, > Karsten > > >
