Re: english parser in text search: support for multiple words in the same position - Mailing list pgsql-hackers

From Tom Lane
Subject Re: english parser in text search: support for multiple words in the same position
Date
Msg-id 15782.1280758804@sss.pgh.pa.us
Whole thread Raw
In response to Re: english parser in text search: support for multiple words in the same position  (Sushant Sinha <sushant354@gmail.com>)
Responses Re: english parser in text search: support for multiple words in the same position  (Sushant Sinha <sushant354@gmail.com>)
List pgsql-hackers
Sushant Sinha <sushant354@gmail.com> writes:
>> This would needlessly increase the number of tokens. Instead you'd 
>> better make it work like compound word support, having just "wikipedia" 
>> and "org" as tokens.

> The current text parser already returns url and url_path. That already
> increases the number of unique tokens. I am only asking for adding of
> normal english words as well so that if someone types only "wikipedia"
> he gets a match. 

The suggestion to make it work like compound words is still a good one,
ie given wikipedia.org you'd get back
host        wikipedia.orghost-part    wikipediahost-part    org

not just the "host" token as at present.

Then the user could decide whether he needed to index hostname
components or not, by choosing whether to forward hostname-part
tokens to a dictionary or just discard them.

If you submit a patch that tries to force the issue by classifying
hostname parts as plain words, it'll probably get rejected out of
hand on backwards-compatibility grounds.
        regards, tom lane


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