Search on field returns documents that should not match

[Chang Wang <ch...@gmail.com>]

Hello All,


I am confused by the field search behavior of solr (6.6), and hope someone
can help me understand the results.

For example,
I search "fit you handgun" on the field of "title_lemma".
http://localhost:8983/solr/bkb4/select?fq=doc_type:
document&indent=on&q=title_lemma:%20fit%20you%20handgun&wt=json

The first returned result is a good one which contains "fit you handgun" in
"title_lemma" field, the 2nd and 3rd results do not contain any of those
query words at all. Why are these documents still returned?

I attach the screen shot.


There is a related question. When I do not index the field "title_lemma",
solr gui
still allows me to search on that field and returns the result. Why does it
happen?
My understanding is that if a field is not indexed, it should not be
searchable at all.

Thank you,
Chang

RE: Search on field returns documents that should not match

[Jagdish Vasani <Ja...@thedigitalgroup.com>]

Hi Chang Wang,

Searching is worng here, q=title_lemma: fit you handgun
It will search  title_lemma: fit or  _text:you  or _text:handgun (if stop words are not excluded)
Here _text is default search field , you might have different default search field.

Try search like q=title_lemma:(fit you handgun)
That will search any words in field title_lemma

Fire below query, you will get proper result,
http://localhost:8983/solr/bkb4/select?fq=doc_type:document&indent=on&q=title_lemma:(fit you handgun)&wt=json

Thanks,
Jagdish
From: Chang Wang [mailto:changwangbw@gmail.com]
Sent: Friday, September 15, 2017 8:12 AM
To: solr-user@lucene.apache.org
Subject: Search on field returns documents that should not match

Hello All,


I am confused by the field search behavior of solr (6.6), and hope someone
can help me understand the results.

For example,
I search "fit you handgun" on the field of "title_lemma".
http://localhost:8983/solr/bkb4/select?fq=doc_type:document&indent=on&q=title_lemma:%20fit%20you%20handgun&wt=json

The first returned result is a good one which contains "fit you handgun" in "title_lemma" field, the 2nd and 3rd results do not contain any of those query words at all. Why are these documents still returned?

I attach the screen shot.


There is a related question. When I do not index the field "title_lemma", solr gui
still allows me to search on that field and returns the result. Why does it happen?
My understanding is that if a field is not indexed, it should not be searchable at all.

Thank you,
Chang
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