I have a solr server setup and am attempting to get facets working correctly, the following query
/select?q=*:*&wt=xml&indent=true?&facet=true&facet.field=style&facet.field=variety&facet.field=packsize&fq=packsize:6&fq=CABERNET
Where there are three facet fields "style, variety and packsize". The query above returns a number of correct results however when I execute this
/select?q=*:*&wt=xml&indent=true?&facet=true&facet.field=style&facet.field=variety&facet.field=packsize&fq=packsize:6&fq=variety:CABERNET
Suddenly I receive zero results why does prefixing "variety" to the fq break for this but not for packsize?
Also when trying to add &fq=style:red or &fq=red neither of these work even though there are many results with "style = red". Any ideas??
For the filter queries if the field is not specified, the query would work on the default field.
You can check the filter query executed by adding debugQuery=on
<arr name="parsed_filter_queries">
<str>text:solr100</str>
</arr>
So check for the default field should have the CABERNET term.
Also the match would depend upon the field type, the analysis performed and where the field is indexed or not.
Only fields indexed would be able to filter the results.
Related
I'm using Solr 8.11.2. In order to boost documents with certain field values, I'm using Dismax's bq (Boost Query) parameter.
From what I've read, this should only influence the score of the search results returned by the rest of the query. What I see happening is that it filters all search results that don't have the field I'm boosting.
I'm using the following query, which returns all documents containing both words procedure and maintenance:
q=((+procedure+maintenance))&rows=10&start=0&wt=xml&q.op=AND&fl=id,score,alias,author,hash,collection,label,url,lastModified,path,extension,objectId,objectDtType,title,DocumentPK_s,Taal_s,Site_s,SharePointId_s&hl=true&hl.qt=highlightRH&hl.fl=content,description,label&hl.snippets=5&defType=dismax&bf=recip(max(0,ms(NOW-3MONTH,creationDate)),3.16e-11,1,1)&pf=content&sort=score DESC
But as soon as I append &bq=language:english^10000, which is supposed to boost documents where the field language is set to english, all documents where the field language doesn't exist are no longer part of the results.
Am I misunderstanding how this parameter is supposed to work? Is it a side effect?
Perhaps someone can enlighten me on how Solr matches terms. So I have a string attribute named assignedBy, and I do a query against this attribute with the value "Aaron Mason" (no quotes). Solr returns more matches than I anticipated because the term "Mason" also matches documents whose other fields contain the word "Mason" in it. By turning on debugging feature (from Solr admin), I see Solr breaks down the query into two attribute queries - "aaron" for assignedBy and "mason" for the catch-all text (see below). Is this the correct behavior? How do I ensure that it only finds matches against the attribute I specify? Thanks.
"debug":{
"rawquerystring":"assignedBy:Aaron Mason",
"querystring":"assignedBy:Aaron Mason",
"parsedquery":"assignedBy:aaron _text_:mason",
"parsedquery_toString":"assignedBy:aaron _text_:mason",
yes you are correct. when you q=assignedBy:Aaron Mason
after parsing the query, based on you query tokenizers in schema file, it looks like
assignedBy:aaron and _text_:mason.
if you don't specify field name queryterm is searched in default field (which is set in solrconfig.xml file) you can look for <str name="df">text</str> under /select handler. in your case it might be _text_.
So, Solr search for its index and retrieve combined results of all documents which has field assignedBy with term "Aaron" and all documents which has field _text_ with term "mason".
you might have used copyfield to copy some field values to text field. check for it.
You can use dismax/edismax where you can specify in which field all your terms to search for
example:
q=Aaron Mason&wt=json&debugQuery=on&defType=dismax&qf=assignedBy
This only finds matches against the field "assignedBy" specified in qf
I am trying to do a solr dismax query over multiple fields, and am a little confused with the syntax.
My core contains a whole load of podcast episodes. The fields in the index are EPISODE_ID, EPISODE_TITLE, EPISODE_DESC, and EPISODE_KEYWORDS.
Now, when I do a query I would like to search for the query term in the EPISODE_TITLE, EPISODE_DESC, and EPISODE_KEYWORDS fields, with different boosts for the different fields.
So when I search for 'jedi', the query I've built looks like this:
http://localhost:8983/solr/episode_core/select?
&defType=dismax&q=jedi&fl=EPISODE_ID,EPISODE_TITLE,EPISODE_DESC,EPISODE_KEYWORDS
&qf=EPISODE_TITLE^3.0+EPISODE_DESC^2.0+EPISODE_KEYWORDS
However, this doesn't seem to work - it returns zero records.
When I put a default field like below, it now works, but this is kind of crap because it means I'm not getting results from searching all of the 3 fields:
http://localhost:8983/solr/episode_core/select?&df=EPISODE_DESC
&defType=dismax&q=jedi&fl=EPISODE_ID,EPISODE_TITLE,EPISODE_DESC,EPISODE_KEYWORDS
&qf=EPISODE_TITLE^3.0+EPISODE_DESC^2.0+EPISODE_KEYWORDS
Is there something I am missing here? I thought that you could search over multiple fields, and I thought that the 'qf' parameter would mean you didn't need to supply the default field parameter?
All help much appreciated...
Your idea is correct. If you've defined qf (query fields) for Dismax, there shouldn't be any need to specify a df (default field).
Can you be more specific about what isn't working?
Also, read up on Configuration Invariants in solrconfig.xml as it is possible your configuration could be sending some different parameters than you've specified in the URL.
(E.g. if you're seeing a specific error message asking you to provide a df)
I am trying to query Solr with following requirement:
_ I would like to get all documents which not have a particular field
-exclusivity:[* TO *]
I would like to get all document which have this field and got the specific value
exclusivity:(None)
so when I am trying to query Solr 4 with:
fq=(-exclusivity:[* TO *]) OR exclusivity:(None)
I have only got results if the field exists in document and the value is None but results not contain results from first query !!
I cannot understand why it is not working
To explain your results, the query (-exclusivity:[* TO *]) will always get no results, because you haven't specified any result to retrieve. By default, Lucene doesn't retrieve any results, unless you tell it to get them. exclusivity:(None) isn't a limitation placed on the full result set, it is the key used to find the documents to retrieve. This differs from a database, which by default returns all records in a table, and allows you to limit the set.
(-exclusivity:[* TO *]) only specifies what NOT to get, but doesn't tell it to GET anything at all.
Solr has logic to handle Pure negative queries (I believe, in much the same way as below, by implicitly retrieving all documents first), but from what I gather, only as the top level query, and it does not handle queries like term1 OR -term2 documented here.
I believe with solr you should be able to use the query *:* to get all docs (though that would not be available in raw lucene), so you could use the query:
(*:* -exclusivity:[* TO *]) exclusivity:(None)
which would mean, get (all docs except those with a value in exclusivity) or docs where exclusivity = "None"
I have founded answer to this problem. I have made bad assumption how "-" works in solr.I though that
-exclusivity:[* TO *]
add everything without exclusivity field to the data set but it is not the case. The '-' could only exclude things from data set. BTW femtoRgon you are right but I am using it as fq (filter query) not as a master query I have forgotten to mention that.
So the solution is like
-exclusivity:([* TO *] AND -(None))
and full query looks like
/?q=*:*&fq=-exclusivity:([* TO *] AND -(None))
so that means I will get everything does not have field exclusivity or has this field and it is populated with value None.
Solr newbie here.
I have created a Solr index and write a whole bunch of docs into it. I can see
from the Solr admin page that the docs exist and the schema is fine as well.
But when I perform a search using a test keyword I do not get any results back.
On entering * : *
into the query (in Solr admin page) I get all the results.
However, when I enter any other query (e.g. a term or phrase) I get no results.
I have verified that the field being queried is Indexed and contains the values I am searching for.
So I am confused what I am doing wrong.
Probably you don't have a <defaultSearchField> correctly set up. See this question.
Another possibility: your field is of type string instead of text. String fields, in contrast to text fields, are not analyzed, but stored and indexed verbatim.
I had the same issue with a new setup of Solr 8. The accepted answer is not valid anymore, because the <defaultSearchField> configuration will be deprecated.
As I found no answer to why Solr does not return results from any fields despite being indexed, I consulted the query documentation. What I found is the DisMax query parser:
The DisMax query parser is designed to process simple phrases (without complex syntax) entered by users and to search for individual terms across several fields using different weighting (boosts) based on the significance of each field. Additional options enable users to influence the score based on rules specific to each use case (independent of user input).
In contrast, the default Lucene parser only speaks about searching one field. So I gave DisMax a try and it worked very well!
Query example:
http://localhost:8983/solr/techproducts/select?defType=dismax&q=video
You can also specify which fields to search exactly to prevent unwanted side effects. Multiple fields are separated by spaces which translate to + in URLs:
http://localhost:8983/solr/techproducts/select?defType=dismax&q=video&qf=features+text
Last but not least, give the fields a weight:
http://localhost:8983/solr/techproducts/select?defType=dismax&q=video&qf=features^20.0+text^0.3
If you are using pysolr like I do, you can add those parameters to your search request like this:
results = solr.search('search term', **{
'defType': 'dismax',
'qf': 'features text'
})
In my case the problem was the format of the query. It seems that my setup, by default, was looking and an exact match to the entire value of the field. So, in order to get results if I was searching for the sit I had to query *sit*, i.e. use wildcards to get the expected result.
With solr 4, I had to solve this as per Mauricio's answer by defining type="text_en" to the field.
With solr 6, use text_general.