Use of ISpell dictionaries with tsearch2 - what is the point?
От | Don Walker |
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Тема | Use of ISpell dictionaries with tsearch2 - what is the point? |
Дата | |
Msg-id | 001701c66af7$81c75af0$dbd849c6@donxp обсуждение исходный текст |
Ответы |
Re: Use of ISpell dictionaries with tsearch2 - what is the point?
Re: Use of ISpell dictionaries with tsearch2 - what is |
Список | pgsql-general |
I'm new to using tsearch2 and am trying to understand why I would want to use an ISpell dictionary before the stemming dictionary. I'd originally hoped that ISpell would suggest corrections for misspelled words as the documents that I will be indexing will contain a lot of spelling mistakes. From what I now understand ISpell dictionaries only recognize properly spelled words. This means that any misspelled word will be handled by the stemming dictionary and usually just passed as is. 1. If I am correct about this then what is the point of using the ISpell dictionary in the first place? 2. Is there a solution for correcting spelling mistakes in the documents you index? I have seen the readme files for pg_trgm, http://www.sai.msu.su/~megera/postgres/gist/, which would allow me to suggest other terms for a query if the misspellings were common enough. I'd rather fix the problem at index time so that querying with the proper term would find any misspelled terms (within reason).
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