Dismax question

[Rafał Kuć <r....@solr.pl>]

Hello!

I've got a problem and maybe someone had a similar one ;) I want to
'force' dismax to make a query like the following one:
+title:foo^100 desc:foo

The name and desc fields are only an exmaple, there can be a multiple
fields that lay under the name of 'title' and 'desc'.

What I try to achieve is get the documents that have a match in both
the title and desc fields or only in the title and exclude the documents
that only have a match in the desc field.

Is this possible with dismax ?

-- 
Regards,
 Rafał Kuć
 http://solr.pl

Re: Dismax question

[Chris Hostetter <ho...@fucit.org>]

: > Deja-Vu...
: 
: > http://www.lucidimagination.com/search/document/3551f130b6772799/excluding_docs_from_results_based_on_matched_field
: 
: > -Hoss
: 
: Thanks for the answer, the problem is that the query like this:
: 
: q=foo&defType=dismax&qf=title&bq={!dismax qf='title desc' v=$q}
: 
: causes exception in Solr - "infinite recursion detected".

Hmmm, yeah ... that makes sense given the way local params work (although 
i'm amazed Solr actually detects it instead of just crashing -- the local 
param parsing is smarter then i thought!)

Assuming this is what i think it is, it's because the "inner" dismax query 
is looking for a "bq" param, which is leading to infinite recursion 
because there is no bq local param -- if you specify bf='' inside the 
{!dismax} that error should go away (but you may still not get the results 
you expect if you also have other top level dismax params like pf, etc...

http://www.lucidimagination.com/search/document/a60e420f5c3d8365/searching_for_terms_on_specific_fields#a60e420f5c3d8365

You should be able to bypass the kind of thing entirely by making *both* 
of the dismax queries nested queries of some other top level query (so 
they can't possibly inherit params from eachother) instead of using bq ... 

	qq = foo
	q = +_query_:"$main" _query_:"$extra"
	main = {!dismax ... v=$qq}
	extra = {!dismax ... v=$qq}




-Hoss

Re: Dismax question

[Rafał Kuć <r....@solr.pl>]

Hello!

> : I've got a problem and maybe someone had a similar one ;) I want to
> : 'force' dismax to make a query like the following one:
> : +title:foo^100 desc:foo
> : 
> : The name and desc fields are only an exmaple, there can be a multiple
> : fields that lay under the name of 'title' and 'desc'.
> : 
> : What I try to achieve is get the documents that have a match in both
> : the title and desc fields or only in the title and exclude the documents
> : that only have a match in the desc field.

> Deja-Vu...

> http://www.lucidimagination.com/search/document/3551f130b6772799/excluding_docs_from_results_based_on_matched_field

> -Hoss

Thanks for the answer, the problem is that the query like this:

q=foo&defType=dismax&qf=title&bq={!dismax qf='title desc' v=$q}

causes exception in Solr - "infinite recursion detected".

-- 
Regards,
 Rafał Kuć
 http://solr.pl

Re: Dismax question

[Chris Hostetter <ho...@fucit.org>]

: I've got a problem and maybe someone had a similar one ;) I want to
: 'force' dismax to make a query like the following one:
: +title:foo^100 desc:foo
: 
: The name and desc fields are only an exmaple, there can be a multiple
: fields that lay under the name of 'title' and 'desc'.
: 
: What I try to achieve is get the documents that have a match in both
: the title and desc fields or only in the title and exclude the documents
: that only have a match in the desc field.

Deja-Vu...

http://www.lucidimagination.com/search/document/3551f130b6772799/excluding_docs_from_results_based_on_matched_field

-Hoss