Thread: tsearch2 question...

Hello,

I have a quick question regarding tsearch2, hopefully this is an okay
place to ask because I couldn't find a tsearch2-specific mailing list..

Anyways, when the field which is indexed using tsearch2 is displayed in
it's entirety I want the searched keywords to be highlighted, just as in
a headline except that the entire document gets displayed instead of just
a summary of it..

In order for this to work well, it would seem that I need the same code
path as that used to generate the headline to begin with, otherwise
differences in stemming/etc could cause mis-matches...

My thought was to do:

SELECT bodytext_id,headline(bodytext,
to_tsquery('default','SEARCH_KEYS'),'
MaxWords=999999999,MinWords=999999999,ShortWord=0') FROM some_table WHERE
bodytext_id=SOME_ID

Does this seem like a 'reasonable' way to do this?... In not is there a
better way that you can think of?...

Thanks!

- GReg

Net Virtual Mailing Lists wrote:
> Hello,
>
> I have a quick question regarding tsearch2, hopefully this is an okay
> place to ask because I couldn't find a tsearch2-specific mailing list..
>
> Anyways, when the field which is indexed using tsearch2 is displayed in
> it's entirety I want the searched keywords to be highlighted, just as in
> a headline except that the entire document gets displayed instead of just
> a summary of it..
>
> In order for this to work well, it would seem that I need the same code
> path as that used to generate the headline to begin with, otherwise
> differences in stemming/etc could cause mis-matches...
>
> My thought was to do:
>
> SELECT bodytext_id,headline(bodytext,
> to_tsquery('default','SEARCH_KEYS'),'
> MaxWords=999999999,MinWords=999999999,ShortWord=0') FROM some_table WHERE
> bodytext_id=SOME_ID
>
> Does this seem like a 'reasonable' way to do this?... In not is there a
> better way that you can think of?...
>

Big value of MinWord is right way.


--
Teodor Sigaev                                  E-mail: teodor@sigaev.ru