Enterprise Search support for Apache Lucene and Solr by Lucid Imagination

We're the commercial entity exclusively dedicated to Apache Lucene/Solr open source search technology. Our products and services can help you develop and deploy search solutions with confidence: professional training, SLA-based support subscriptions; best practices consulting; free certified distributions of Lucene and Solr; and value-add software.

Shalin Says…: Inside Solr: Improvements in Faceted Search Performance

Yonik Seeley recently implemented a new method for faceting which will be available in Solr 1.4 (yet to be released). It is optimized for faceting on multi-valued fields with large number of unique terms but relatively low number of terms per document. The new method has made a large improvement in performance for faceted search and has cut memory usage at the same time.

Apache Lucene – Query Parser Syntax

Although Lucene provides the ability to create your own queries through its API, it also provides a rich query language through the Query Parser, a lexer which interprets a string into a Lucene Query using JavaCC.

This page provides the Query Parser syntax in Lucene 1.9. If you are using a different version of Lucene, please consult the copy of docs/queryparsersyntax.html that was distributed with the version you are using.

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