In Solrj (Solr 3.6), am I able to filter my search for a dynamic field:
params.set("fl", "name*_s");
Or do I still need to copy this field to a new field (non-dynamic) in order to search it?
Thank you in advance.
params.set("fl", "name*_s");
I don't think you can do this in 3.6. At least, the patch is labelled as "Fix Version/s: 4.0"
Now, you can still retrieve a value from a specific dynamic field, like "name123_s" by naming it directly.
But I'm not sure if I'm answering the right question, as "fl" isn't involved in filtering, or searching. "fl" is the list of stored fields to return.
If you want to search multiple fields, you should look at the "qf" parameter of the edismax query parser.
Related
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)
All:
I am pretty new to SOLR, I upload some documents which have "season" in content field(store but not indexed, copy to text field) and in title field(store and indexed copy to text field)
When I use basic query without dismax like:
http://localhost:8983/solr/collection1/select?q=season&rows=5&wt=json&indent=true
It works very well and return correct results, but when I want to boost those documents which have more "season" in content rather than title, I used dismax like(I guess the way I use it is totally, cos the content is not indexed, but I at least expect certain return result even incorrect ):
http://localhost:8983/solr/collection1/select?q=season&rows=5&wt=json&indent=true&defType=dismax&qf=content%5E100+title%5E1
There is no match result returned, I wonder if anyone could help me with this? Or could anyone show me how to use dismax correctly
Thanks
In your second query you specify the "content" field as the one and only query field but earlier you write that this field is stored but not indexed. If a field is not indexed you can not search against it.
I faced the same problem. Tracked it down to the schema definition where for dismax to work, field type should be text and not string
for e.g text_general,text_en_splitting,text_en
Its because of the tokenizers used for this field types.
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I am using Solr version 3.5. I want to implement an auto-suggest feature in my application through the Suggester approach. http://wiki.apache.org/solr/Suggester.
Can someone please help me with the following:
How can i return more than one fields in the query response. For example, i am trying to create an index based on the 'name' field, but i also want to return an 'id' field where these two fields are the product attributes i am search for [say movie titles]. Hence, the response should include both the 'id' and 'title' of the product
How can i do a case-insensitive search using Suggester? For example, a search term "abc" should return documents containing the name as "ABC", "Abc" etc.
Please help.
Regards.
If you're looking to get suggestions on a particular field but also return other fields in the document, you can use the 'Payload' tag. Only one payload field is allowed, but you can get around this by using a json format in the field.
https://cwiki.apache.org/confluence/display/solr/Suggester
https://stackoverflow.com/a/32558487/578582
I think you're not quite getting the point of the suggester. It is not designed to return suggestions for exactly one search result per entry (this is the only scenario where returning the ID would make sense).
You could, however, do normal wildcard searches on the title field and use the returned titles as suggestions. This way you could also get the ID (and any other index field) with the results. I imagine this could be implemented fairly easily with jQuery UI. It may be much slower than the suggest API, depending on your index schema design.
if you are not really interested in the order of the suggestions i found that the weight_field can be [ab]used to return the document id for each suggestion
I implemented Solr SpellCheck Component based on the document from http://wiki.apache.org/solr/SpellCheckComponent , it works good. But i am trying to filter the spell check result based on some other filter. Consider the following schema
product_name
product_text
product_category
product_spell -> copy string from product_name and product_text . And tokenized using white space analyzer
For the above schema, i am trying to filter the spell check result based on provided category. I tried querying like http://127.0.0.1:8080/solr/colr1/myspellcheck/?q=product_category:160%20appl&spellcheck=true&spellcheck.extendedResults=true&spellcheck.collate=true . Spellcheck results does not consider the product_category:160
Is it because the dictionary was build for all the categories? If so is it a good idea to create the dictionary for every category?
Is it not possible to have another filter condition in spellcheck component?
I am using solr 3.5
I previously understood from the SOLR-2010 issue that filtering through the fq parameter should be possible using collation, but it isn't, I think I misunderstood.
In fact, the SpellCheckComponent has most likely a separate index, except for the DirectoSolrSpellChecker implementation. It means the field you select is indexed in a different index, which contains only the information about that specific field you chose to make spelling corrections.
If you're curious, you can also have a look how that additional index looks like using luke, since it's of course a lucene index. Unfortunately filtering using other fields isn't an option there, simply because there is only one field there, the one you use to make spelling corrections.
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.