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< a href = "http://link.packtpub.com/2LjDxE" > < img border = "0" title = "Book: Apache Solr 3 Enterprise Search Server" alt = "Book: Apache Solr 3 Enterprise Search Server - logo" src = "images/as3ess_book.jpg" style = "width: 150px;height: 185px;" > < / a > < a href = "http://www.packtpub.com/solr-3-1-enterprise-search-server-cookbook/book" > < img border = "0" title = "Book: Apache Solr 3.1 Cookbook" alt = "Book: Apache Solr 3.1 Cookbook - logo" src = "images/solr_31_cookbook.jpg" style = "width: 150px;height: 180px;" > < / a > < a href = "http://www.lucidimagination.com/Downloads/LucidWorks-for-Solr/Reference-Guide?sc=AP" > < img border = "0" title = "LucidWorks for Solr Certified Distribution Reference Guide" alt = "LucidWorks for Solr Certified Distribution Reference Guide - logo" src = "images/lucidworks_reference_guide.png" style = "width: 150px;height: 185px;" > < / a >
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PDF< / a >
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< h1 > Solr tutorial< / h1 >
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< li >
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< a href = "#Overview" > Overview< / a >
< / li >
< li >
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< a href = "#Requirements" > Requirements< / a >
< / li >
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< li >
< a href = "#Getting+Started" > Getting Started< / a >
< / li >
< li >
< a href = "#Indexing+Data" > Indexing Data< / a >
< / li >
< li >
< a href = "#Updating+Data" > Updating Data< / a >
< ul class = "minitoc" >
< li >
< a href = "#Deleting+Data" > Deleting Data< / a >
< / li >
< / ul >
< / li >
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< a href = "#Querying+Data" > Querying Data< / a >
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< a href = "#Sorting" > Sorting< / a >
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< / ul >
< / li >
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< a href = "#Highlighting" > Highlighting< / a >
< / li >
< li >
< a href = "#Faceted+Search" > Faceted Search< / a >
< / li >
< li >
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< a href = "#Search+UI" > Search UI< / a >
< / li >
< li >
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< a href = "#Text+Analysis" > Text Analysis< / a >
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< a href = "#Analysis+Debugging" > Analysis Debugging< / a >
< / li >
< / ul >
< / li >
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< a href = "#Conclusion" > Conclusion< / a >
< / li >
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< / ul >
< / div >
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< a name = "N1000D" > < / a > < a name = "Overview" > < / a >
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< h2 class = "boxed" > Overview< / h2 >
< div class = "section" >
< p >
This document covers the basics of running Solr using an example
schema, and some sample data.
< / p >
< / div >
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< a name = "N10017" > < / a > < a name = "Requirements" > < / a >
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< h2 class = "boxed" > Requirements< / h2 >
< div class = "section" >
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< p >
To follow along with this tutorial, you will need...
< / p >
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< ol >
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< li > Java 1.6 or greater. Some places you can get it are from
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< a href = "http://www.oracle.com/technetwork/java/javase/downloads/index.html" > Oracle< / a > ,
< a href = "http://openjdk.java.net/" > Open JDK< / a > ,
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< a href = "http://www.ibm.com/developerworks/java/jdk/" > IBM< / a > , or
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< br >
Running < span class = "codefrag" > java -version< / span > at the command line should indicate a version
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number starting with 1.6. Gnu's GCJ is not supported and does not work with Solr.
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< / li >
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< li > A < a href = "http://www.apache.org/dyn/closer.cgi/lucene/solr/" > Solr release< / a > .
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< / li >
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< / ol >
< / div >
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< a name = "N1003F" > < / a > < a name = "Getting+Started" > < / a >
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< h2 class = "boxed" > Getting Started< / h2 >
< div class = "section" >
< p >
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< strong >
Please run the browser showing this tutorial and the Solr server on the same machine so tutorial links will correctly point to your Solr server.
< / strong >
< / p >
< p >
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Begin by unziping the Solr release and changing your working directory
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to be the "< span class = "codefrag" > example< / span > " directory. (Note that the base directory name may vary with the version of Solr downloaded.) For example, with a shell in UNIX, Cygwin, or MacOS:
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< / p >
< pre class = "code" >
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user:~solr$ < strong > ls< / strong >
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solr-nightly.zip
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user:~solr$ < strong > unzip -q solr-nightly.zip< / strong >
user:~solr$ < strong > cd solr-nightly/example/< / strong >
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< / pre >
< p >
Solr can run in any Java Servlet Container of your choice, but to simplify
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this tutorial, the example index includes a small installation of Jetty.
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< / p >
< p >
To launch Jetty with the Solr WAR, and the example configs, just run the < span class = "codefrag" > start.jar< / span > ...
< / p >
< pre class = "code" >
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user:~/solr/example$ < strong > java -jar start.jar< / strong >
2009-10-23 16:42:53.816::INFO: Logging to STDERR via org.mortbay.log.StdErrLog
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2009-10-23 16:42:53.907::INFO: jetty-6.1.26
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...
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Oct 23, 2009 4:41:56 PM org.apache.solr.core.SolrCore registerSearcher
INFO: [] Registered new searcher Searcher@7c3885 main
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< / pre >
< p >
This will start up the Jetty application server on port 8983, and use your terminal to display the logging information from Solr.
< / p >
< p >
You can see that the Solr is running by loading < a href = "http://localhost:8983/solr/admin/" > http://localhost:8983/solr/admin/< / a > in your web browser. This is the main starting point for Administering Solr.
< / p >
< / div >
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< a name = "N10077" > < / a > < a name = "Indexing+Data" > < / a >
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< h2 class = "boxed" > Indexing Data< / h2 >
< div class = "section" >
< p >
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Your Solr server is up and running, but it doesn't contain any data. You can
modify a Solr index by POSTing XML Documents containing instructions to add (or
update) documents, delete documents, commit pending adds and deletes, and
optimize your index.
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< / p >
< p >
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The < span class = "codefrag" > exampledocs< / span > directory contains samples of the types of
instructions Solr expects, as well as a java utility for posting them from the
command line (a < span class = "codefrag" > post.sh< / span > shell script is also available, but for
this tutorial we'll use the cross-platform Java client). < / p >
< p > To try this,
open a new terminal window, enter the exampledocs directory, and run
"< span class = "codefrag" > java -jar post.jar< / span > " on some of the XML files in that directory,
indicating the URL of the Solr server:
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< / p >
< pre class = "code" >
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user:~/solr/example/exampledocs$ < strong > java -jar post.jar solr.xml monitor.xml< / strong >
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SimplePostTool: version 1.2
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SimplePostTool: WARNING: Make sure your XML documents are encoded in UTF-8, other encodings are not currently supported
SimplePostTool: POSTing files to http://localhost:8983/solr/update..
SimplePostTool: POSTing file solr.xml
SimplePostTool: POSTing file monitor.xml
SimplePostTool: COMMITting Solr index changes..
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< / pre >
< p >
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You have now indexed two documents in Solr, and committed these changes.
You can now search for "solr" using the "Make a Query" interface on the Admin screen, and you should get one result.
Clicking the "Search" button should take you to the following URL...
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< / p >
< p >
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< a href = "http://localhost:8983/solr/select/?q=solr&start=0&rows=10&indent=on" > http://localhost:8983/solr/select/?q=solr& start=0& rows=10& indent=on< / a >
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< / p >
< p >
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You can index all of the sample data, using the following command (assuming your command line shell supports the *.xml notation):
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< / p >
< pre class = "code" >
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user:~/solr/example/exampledocs$ < strong > java -jar post.jar *.xml< / strong >
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SimplePostTool: version 1.2
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SimplePostTool: WARNING: Make sure your XML documents are encoded in UTF-8, other encodings are not currently supported
SimplePostTool: POSTing files to http://localhost:8983/solr/update..
SimplePostTool: POSTing file hd.xml
SimplePostTool: POSTing file ipod_other.xml
SimplePostTool: POSTing file ipod_video.xml
SimplePostTool: POSTing file mem.xml
SimplePostTool: POSTing file monitor.xml
SimplePostTool: POSTing file monitor2.xml
SimplePostTool: POSTing file mp500.xml
SimplePostTool: POSTing file sd500.xml
SimplePostTool: POSTing file solr.xml
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SimplePostTool: POSTing file spellchecker.xml
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SimplePostTool: POSTing file utf8-example.xml
SimplePostTool: POSTing file vidcard.xml
SimplePostTool: COMMITting Solr index changes..
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< / pre >
< p >
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...and now you can search for all sorts of things using the default < a href = "http://wiki.apache.org/solr/SolrQuerySyntax" > Solr Query Syntax< / a > (a superset of the Lucene query syntax)...
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< / p >
< ul >
< li >
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< a href = "http://localhost:8983/solr/select/?q=video" > video< / a >
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< / li >
< li >
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< a href = "http://localhost:8983/solr/select/?q=name:video" > name:video< / a >
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< / li >
< li >
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< a href = "http://localhost:8983/solr/select/?q=%2Bvideo+%2Bprice%3A[*+TO+400]" > +video +price:[* TO 400]< / a >
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< / li >
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< / ul >
< p > < / p >
< p >
There are many other different ways to import your data into Solr... one can
< / p >
< ul >
< li > Import records from a database using the
< a href = "http://wiki.apache.org/solr/DataImportHandler" > Data Import Handler (DIH)< / a > .
< / li >
< li >
< a href = "http://wiki.apache.org/solr/UpdateCSV" > Load a CSV file< / a > (comma separated values),
including those exported by Excel or MySQL.
< / li >
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< li >
< a href = "http://wiki.apache.org/solr/UpdateJSON" > POST JSON documents< / a >
< / li >
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< li > Index binary documents such as Word and PDF with
< a href = "http://wiki.apache.org/solr/ExtractingRequestHandler" > Solr Cell< / a > (ExtractingRequestHandler).
< / li >
< li >
Use < a href = "http://wiki.apache.org/solr/Solrj" > SolrJ< / a > for Java or other Solr clients to
programatically create documents to send to Solr.
< / li >
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< / ul >
< / div >
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< a name = "N100ED" > < / a > < a name = "Updating+Data" > < / a >
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< h2 class = "boxed" > Updating Data< / h2 >
< div class = "section" >
< p >
You may have noticed that even though the file < span class = "codefrag" > solr.xml< / span > has now
been POSTed to the server twice, you still only get 1 result when searching for
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"solr". This is because the example < span class = "codefrag" > schema.xml< / span > specifies a "< span class = "codefrag" > uniqueKey< / span > " field
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called "< span class = "codefrag" > id< / span > ". Whenever you POST instructions to Solr to add a
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document with the same value for the < span class = "codefrag" > uniqueKey< / span > as an existing document, it
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automatically replaces it for you. You can see that that has happened by
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looking at the values for < span class = "codefrag" > numDocs< / span > and < span class = "codefrag" > maxDoc< / span > in the
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"CORE"/searcher section of the statistics page... < / p >
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< p >
< a href = "http://localhost:8983/solr/admin/stats.jsp" > http://localhost:8983/solr/admin/stats.jsp< / a >
< / p >
< p >
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< strong > < span class = "codefrag" > numDocs< / span > < / strong > represents the number of searchable documents in the
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index (and will be larger than the number of XML files since some files
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contained more than one < span class = "codefrag" > < doc> < / span > ). < strong > < span class = "codefrag" > maxDoc< / span > < / strong >
may be larger as the < span class = "codefrag" > maxDoc< / span > count includes logically deleted documents that
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have not yet been removed from the index. You can re-post the sample XML
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files over and over again as much as you want and < span class = "codefrag" > numDocs< / span > will never
increase, because the new documents will constantly be replacing the old.
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< / p >
< p >
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Go ahead and edit the existing XML files to change some of the data, and re-run
the < span class = "codefrag" > java -jar post.jar< / span > command, you'll see your changes reflected
in subsequent searches.
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< / p >
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< a name = "N1012C" > < / a > < a name = "Deleting+Data" > < / a >
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< h3 class = "boxed" > Deleting Data< / h3 >
< p > You can delete data by POSTing a delete command to the update URL and specifying the value
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of the document's unique key field, or a query that matches multiple documents (be careful with that one!). Since these commands
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are smaller, we will specify them right on the command line rather than reference an XML file.
< / p >
< p > Execute the following command to delete a document< / p >
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< pre class = "code" > java -Ddata=args -Dcommit=no -jar post.jar "< delete> < id> SP2514N< /id> < /delete> "< / pre >
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< p > Now if you go to the < a href = "http://localhost:8983/solr/admin/stats.jsp" > statistics< / a > page and scroll down
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to the UPDATE_HANDLERS section and verify that "< span class = "codefrag" > deletesById : 1< / span > "< / p >
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< p > If you search for < a href = "http://localhost:8983/solr/select?q=id:SP2514N" > id:SP2514N< / a > it will still be found,
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because index changes are not visible until changes are committed and a new searcher is opened. To cause
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this to happen, send a commit command to Solr (post.jar does this for you by default):< / p >
< pre class = "code" > java -jar post.jar< / pre >
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< p > Now re-execute the previous search and verify that no matching documents are found. Also revisit the
statistics page and observe the changes in both the UPDATE_HANDLERS section and the CORE section.< / p >
< p > Here is an example of using delete-by-query to delete anything with
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< a href = "http://localhost:8983/solr/select?q=name:DDR&fl=name" > DDR< / a > in the name:< / p >
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< pre class = "code" > java -Ddata=args -jar post.jar "< delete> < query> name:DDR< /query> < /delete> "< / pre >
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< p > Commit can be an expensive operation so it's best to make many changes to an index in a batch and
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then send the < span class = "codefrag" > commit< / span > command at the end. There is also an < span class = "codefrag" > optimize< / span > command that does the same thing as < span class = "codefrag" > commit< / span > ,
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in addition to merging all index segments into a single segment, making it faster to search and causing any
deleted documents to be removed. All of the update commands are documented < a href = "http://wiki.apache.org/solr/UpdateXmlMessages" > here< / a > .
< / p >
< p > To continue with the tutorial, re-add any documents you may have deleted by going to the < span class = "codefrag" > exampledocs< / span > directory and executing< / p >
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< pre class = "code" > java -jar post.jar *.xml< / pre >
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< / div >
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< a name = "N1017B" > < / a > < a name = "Querying+Data" > < / a >
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< h2 class = "boxed" > Querying Data< / h2 >
< div class = "section" >
< p >
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Searches are done via HTTP GET on the < span class = "codefrag" > select< / span > URL with the query string in the < span class = "codefrag" > q< / span > parameter.
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You can pass a number of optional < a href = "http://wiki.apache.org/solr/StandardRequestHandler" > request parameters< / a >
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to the request handler to control what information is returned. For example, you can use the "< span class = "codefrag" > fl< / span > " parameter
to control what stored fields are returned, and if the relevancy score is returned:
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< / p >
< ul >
< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&fl=name,id" > q=video& fl=name,id< / a > (return only name and id fields) < / li >
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< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&fl=name,id,score" > q=video& fl=name,id,score< / a > (return relevancy score as well) < / li >
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< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&fl=*,score" > q=video& fl=*,score< / a > (return all stored fields, as well as relevancy score) < / li >
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< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&sort=price desc&fl=name,id,price" > q=video& sort=price desc& fl=name,id,price< / a > (add sort specification: sort by price descending) < / li >
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< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&wt=json" > q=video& wt=json< / a > (return response in JSON format) < / li >
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< / ul >
< p >
Solr provides a < a href = "http://localhost:8983/solr/admin/form.jsp" > query form< / a > within the web admin interface
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that allows setting the various request parameters and is useful when testing or debugging queries.
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< / p >
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< a name = "N101B9" > < / a > < a name = "Sorting" > < / a >
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< h3 class = "boxed" > Sorting< / h3 >
< p >
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Solr provides a simple method to sort on one or more indexed fields.
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Use the "< span class = "codefrag" > sort< / span > ' parameter to specify "field direction" pairs, separated by commas if there's more than one sort field:
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< / p >
< ul >
< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&sort=price+desc" > q=video& sort=price desc< / a >
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< / li >
< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&sort=price+asc" > q=video& sort=price asc< / a >
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< / li >
< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&sort=inStock+asc,price+desc" > q=video& sort=inStock asc, price desc< / a >
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< / li >
< / ul >
< p >
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"< span class = "codefrag" > score< / span > " can also be used as a field name when specifying a sort:
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< / p >
< ul >
< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&sort=score+desc" > q=video& sort=score desc< / a >
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< / li >
< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=video&sort=inStock+asc,score+desc" > q=video& sort=inStock asc, score desc< / a >
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< / li >
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< / ul >
< p >
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Complex functions may also be used to sort results:
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< / p >
< ul >
< li >
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< a href = "http://localhost:8983/solr/select/?indent=on&q=*:*&sort=div(popularity,add(price,1))+desc" > q=video& sort=div(popularity,add(price,1)) desc< / a >
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< / li >
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< / ul >
< p >
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If no sort is specified, the default is < span class = "codefrag" > score desc< / span > to return the matches having the highest relevancy.
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< / p >
< / div >
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< a name = "N101FD" > < / a > < a name = "Highlighting" > < / a >
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< h2 class = "boxed" > Highlighting< / h2 >
< div class = "section" >
< p >
Hit highlighting returns relevent snippets of each returned document, and highlights
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terms from the query within those context snippets.
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< / p >
< p >
The following example searches for < span class = "codefrag" > video card< / span > and requests
highlighting on the fields < span class = "codefrag" > name,features< / span > . This causes a
< span class = "codefrag" > highlighting< / span > section to be added to the response with the
words to highlight surrounded with < span class = "codefrag" > < em> < / span > (for emphasis)
tags.
< / p >
< p >
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< a href = "http://localhost:8983/solr/select/?wt=json&indent=on&q=video+card&fl=name,id&hl=true&hl.fl=name,features" > ...& q=video card& fl=name,id& hl=true& hl.fl=name,features< / a >
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< / p >
< p >
More request parameters related to controlling highlighting may be found
< a href = "http://wiki.apache.org/solr/HighlightingParameters" > here< / a > .
< / p >
< / div > <!-- highlighting -->
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< a name = "N10226" > < / a > < a name = "Faceted+Search" > < / a >
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< h2 class = "boxed" > Faceted Search< / h2 >
< div class = "section" >
< p >
Faceted search takes the documents matched by a query and generates counts for various
properties or categories. Links are usually provided that allows users to "drill down" or
refine their search results based on the returned categories.
< / p >
< p >
The following example searches for all documents (< span class = "codefrag" > *:*< / span > ) and
requests counts by the category field < span class = "codefrag" > cat< / span > .
< / p >
< p >
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< a href = "http://localhost:8983/solr/select/?wt=json&indent=on&q=*:*&fl=name&facet=true&facet.field=cat" > ...& q=*:*& facet=true& facet.field=cat< / a >
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< / p >
< p >
Notice that although only the first 10 documents are returned in the results list,
the facet counts generated are for the complete set of documents that match the query.
< / p >
< p >
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We can facet multiple ways at the same time. The following example adds a facet on the
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boolean < span class = "codefrag" > inStock< / span > field:
< / p >
< p >
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< a href = "http://localhost:8983/solr/select/?wt=json&indent=on&q=*:*&fl=name&facet=true&facet.field=cat&facet.field=inStock" > ...& q=*:*& facet=true& facet.field=cat& facet.field=inStock< / a >
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< / p >
< p >
Solr can also generate counts for arbitrary queries. The following example
queries for < span class = "codefrag" > ipod< / span > and shows prices below and above 100 by using
range queries on the price field.
< / p >
< p >
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< a href = "http://localhost:8983/solr/select/?wt=json&indent=on&q=ipod&fl=name&facet=true&facet.query=price:[0+TO+100]&facet.query=price:[100+TO+*]" > ...& q=ipod& facet=true& facet.query=price:[0 TO 100]& facet.query=price:[100 TO *]< / a >
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< / p >
< p >
One can even facet by date ranges. This example requests counts for the manufacture date (< span class = "codefrag" > manufacturedate_dt< / span > field) for each year between 2004 and 2010.
< / p >
< p >
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< a href = "http://localhost:8983/solr/select/?wt=json&indent=on&q=*:*&fl=name,manufacturedate_dt&facet=true&facet.date=manufacturedate_dt&facet.date.start=2004-01-01T00:00:00Z&facet.date.end=2010-01-01T00:00:00Z&facet.date.gap=%2b1YEAR" > ...& q=*:*& facet=true& facet.date=manufacturedate_dt& facet.date.start=2004-01-01T00:00:00Z& facet.date.end=2010-01-01T00:00:00Z& facet.date.gap=+1YEAR< / a >
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< / p >
< p >
More information on faceted search may be found on the
< a href = "http://wiki.apache.org/solr/SolrFacetingOverview" > faceting overview< / a >
and
< a href = "http://wiki.apache.org/solr/SimpleFacetParameters" > faceting parameters< / a >
pages.
< / p >
< / div > <!-- faceted search -->
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< a name = "N10277" > < / a > < a name = "Search+UI" > < / a >
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< h2 class = "boxed" > Search UI< / h2 >
< div class = "section" >
< p >
Solr includes an example search interface built with velocity templating
that demonstrates many features, including searching, faceting, highlighting,
autocomplete, and geospatial searching.
< / p >
< p >
Try it out at
< a href = "http://localhost:8983/solr/browse" > http://localhost:8983/solr/browse< / a >
< / p >
< / div > <!-- Search UI -->
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< a name = "N1028A" > < / a > < a name = "Text+Analysis" > < / a >
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< h2 class = "boxed" > Text Analysis< / h2 >
< div class = "section" >
< p >
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Text fields are typically indexed by breaking the text into words and applying various transformations such as
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lowercasing, removing plurals, or stemming to increase relevancy. The same text transformations are normally
applied to any queries in order to match what is indexed.
< / p >
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< p >
The < a href = "http://wiki.apache.org/solr/SchemaXml" > schema< / a > defines
the fields in the index and what type of analysis is applied to them. The current schema your server is using
may be accessed via the < span class = "codefrag" > [SCHEMA]< / span > link on the < a href = "http://localhost:8983/solr/admin/" > admin< / a > page.
< / p >
< p >
The best analysis components (tokenization and filtering) for your textual content depends heavily on language.
As you can see in the above < span class = "codefrag" > [SCHEMA]< / span > link, the fields in the example schema are using a < span class = "codefrag" > fieldType< / span >
named < span class = "codefrag" > text_general< / span > , which has defaults appropriate for all languages.
< / p >
< p >
If you know your textual content is English, as is the case for the example documents in this tutorial,
and you'd like to apply English-specific stemming and stop word removal, as well as split compound words, you can use the < span class = "codefrag" > text_en_splitting< / span > fieldType instead.
Go ahead and edit the < span class = "codefrag" > schema.xml< / span > under the < span class = "codefrag" > solr/example/solr/conf< / span > directory,
and change the < span class = "codefrag" > type< / span > for fields < span class = "codefrag" > text< / span > and < span class = "codefrag" > features< / span > from < span class = "codefrag" > text_general< / span > to < span class = "codefrag" > text_en_splitting< / span > .
Restart the server and then re-post all of the documents, and then these queries will show the English-specific transformations:
< / p >
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< ul >
< li > A search for
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< a href = "http://localhost:8983/solr/select/?indent=on&q=power-shot&fl=name" > power-shot< / a >
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matches < span class = "codefrag" > PowerShot< / span > , and
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< a href = "http://localhost:8983/solr/select/?indent=on&q=adata&fl=name" > adata< / a >
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matches < span class = "codefrag" > A-DATA< / span > due to the use of < span class = "codefrag" > WordDelimiterFilter< / span > and < span class = "codefrag" > LowerCaseFilter< / span > .
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< / li >
< li > A search for
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< a href = "http://localhost:8983/solr/select/?indent=on&q=features:recharging&fl=name,features" > features:recharging< / a >
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matches < span class = "codefrag" > Rechargeable< / span > due to stemming with the < span class = "codefrag" > EnglishPorterFilter< / span > .
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< / li >
< li > A search for
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< a href = "http://localhost:8983/solr/select/?indent=on&q=%221 gigabyte%22&fl=name" > "1 gigabyte"< / a >
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matches things with < span class = "codefrag" > GB< / span > , and the misspelled
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< a href = "http://localhost:8983/solr/select/?indent=on&q=pixima&fl=name" > pixima< / a >
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matches < span class = "codefrag" > Pixma< / span > due to use of a < span class = "codefrag" > SynonymFilter< / span > .
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< / li >
< / ul >
< p > A full description of the analysis components, Analyzers, Tokenizers, and TokenFilters
available for use is < a href = "http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters" > here< / a > .
< / p >
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< a name = "N1030A" > < / a > < a name = "Analysis+Debugging" > < / a >
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< h3 class = "boxed" > Analysis Debugging< / h3 >
< p > There is a handy < a href = "http://localhost:8983/solr/admin/analysis.jsp" > analysis< / a >
debugging page where you can see how a text value is broken down into words,
and shows the resulting tokens after they pass through each filter in the chain.
< / p >
< p >
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< a href = "http://localhost:8983/solr/admin/analysis.jsp?name=name&val=Canon+Power-Shot+SD500" > This< / a >
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shows how "< span class = "codefrag" > Canon Power-Shot SD500< / span > " would be indexed as a value in the name field. Each row of
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the table shows the resulting tokens after having passed through the next < span class = "codefrag" > TokenFilter< / span > in the analyzer for the < span class = "codefrag" > name< / span > field.
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Notice how both < span class = "codefrag" > powershot< / span > and < span class = "codefrag" > power< / span > , < span class = "codefrag" > shot< / span > are indexed. Tokens generated at the same position
are shown in the same column, in this case < span class = "codefrag" > shot< / span > and < span class = "codefrag" > powershot< / span > .
< / p >
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< p > Selecting < a href = "http://localhost:8983/solr/admin/analysis.jsp?name=name&verbose=on&val=Canon+Power-Shot+SD500" > verbose output< / a >
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will show more details, such as the name of each analyzer component in the chain, token positions, and the start and end positions
of the token in the original text.
< / p >
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< p > Selecting < a href = "http://localhost:8983/solr/admin/analysis.jsp?name=name&highlight=on&val=Canon+Power-Shot+SD500&qval=Powershot sd-500" > highlight matches< / a >
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when both index and query values are provided will take the resulting terms from the query value and highlight
all matches in the index value analysis.
< / p >
< p >
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< a href = "http://localhost:8983/solr/admin/analysis.jsp?name=text&highlight=on&val=Four+score+and+seven+years+ago+our+fathers+brought+forth+on+this+continent+a+new+nation%2C+conceived+in+liberty+and+dedicated+to+the+proposition+that+all+men+are+created+equal.+&qval=liberties+and+equality" > Here< / a >
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is an example of stemming and stop-words at work.
< / p >
< / div >
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< a name = "N1034C" > < / a > < a name = "Conclusion" > < / a >
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< h2 class = "boxed" > Conclusion< / h2 >
< div class = "section" >
< p >
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Congratulations! You successfully ran a small Solr instance, added some
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documents, and made changes to the index and schema. You learned about queries, text
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analysis, and the Solr admin interface. You're ready to start using Solr on
your own project! Continue on with the following steps:
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< / p >
< ul >
< li > Subscribe to the Solr < a href = "mailing_lists.html" > mailing lists< / a > !< / li >
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< li > Make a copy of the Solr < span class = "codefrag" > example< / span > directory as a template for your project.< / li >
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< li > Customize the schema and other config in < span class = "codefrag" > solr/conf/< / span > to meet your needs.< / li >
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< / ul >
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< p >
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Solr has a ton of other features that we haven't touched on here, including
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< a href = "http://wiki.apache.org/solr/DistributedSearch" > distributed search< / a >
to handle huge document collections,
< a href = "http://wiki.apache.org/solr/FunctionQuery" > function queries< / a > ,
< a href = "http://wiki.apache.org/solr/StatsComponent" > numeric field statistics< / a > ,
and
< a href = "http://wiki.apache.org/solr/ClusteringComponent" > search results clustering< / a > .
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Explore the < a href = "http://wiki.apache.org/solr/FrontPage" > Solr Wiki< / a > to find
more details about Solr's many < a href = "features.html" > features< / a > .
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< / p >
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< p >
Have Fun, and we'll see you on the Solr mailing lists!
< / p >
< / div >
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< / div >
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