Hi Jack,
Sorry the example is not clear. Below is the normal way to accomplish what
I am trying to do using a copyField and two separate fieldTypes with the
index analyzer the same but the query time analyzer different.
So the query would be something like q=plain:foobar^10 OR syn:foobar^1 to
get synonyms but scored much lower than an exact match.
The problem with this is since the analysis chain used for indexing is the
same in both cases, I would rather not have to actually index the exact
same content in the exact same way twice.
Does that make it any clearer or do I need a more compelling use case?
Tom
<fieldType name="plain">
<analyzer type=index>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
<fieldType name="plain">
<analyzer type=query>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
<fieldType name="syn">
<analyzer type=index>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
<fieldType name="plain">
<analyzer type=query>
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
<copyField source="plain" dest="syn"/>
On Mon, Mar 4, 2013 at 4:43 PM, Jack Krupansky <j...@basetechnology.com>wrote:
> Please clarify, and try providing a couple more use cases. I mean, the
> case you provided suggests that the contents of the index will be different
> between the two fields, while you told us that you wanted to share the same
> indexed field. In other words, it sounds like you will have two copies of
> similar data anyway.
>
> Maybe you simply want one copy of the stored value for the field and then
> have one or more copyfields that index the same source data differently,
> but don’t re-store the copied source data.
>
> -- Jack Krupansky
>
> *From:* Tom Burton-West <tburt...@umich.edu>
> *Sent:* Monday, March 04, 2013 3:57 PM
> *To:* dev@lucene.apache.org
> *Subject:* Ability to specify 2 different query analyzers for same
> indexed field in Solr
>
> Hello,
>
> We would like to be able to specify two different fields that both use the
> same indexed field but use different analyzers. An example use-case for
> this might be doing query-time synonym expansion with the synonyms weighted
> lower than an exact match.
>
> q=exact_field^10 OR synonyms^1
>
> The normal way to do this in Solr, which is just to set up separate
> analyzer chains and use a copyfield, will not work for us because the field
> in question is huge. It is about 7 TB of OCR.
>
> Is there a way to do this currently in Solr? If not ,
>
> 1) should I open a JIRA issue?
> 2) can someone point me towards the part of the code I might need to
> modify?
>
> Tom
>
> Tom Burton-West
> Information Retrieval Programmer
> Digital Library Production Service
> University of Michigan Library
> http://www.hathitrust.org/blogs/large-scale-search
>
>
>
