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From Apache Wiki <>
Subject [Solr Wiki] Update of "AnalyzersTokenizersTokenFilters" by JasonRutherglen
Date Tue, 19 Jan 2010 15:58:44 GMT
Dear Wiki user,

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The "AnalyzersTokenizersTokenFilters" page has been changed by JasonRutherglen.


  ==== solr.CommonGramsFilterFactory ====
- Creates `org.apache.solr.analysis.CommonGramsFilter`.
+ Creates `org.apache.solr.analysis.CommonGramsFilter`. <!> [[Solr1.4]]
  Makes shingles (i.e. the_cat) by combining common tokens (usually the same as the stop words
list) and regular tokens.  CommonGramsFilter is useful for issuing phrase queries (i.e. "the
cat") that contain stop words.  Normally phrases contaning stop words would not match their
intended target and instead, the query "the cat" would match all documents containing "cat",
which can be undesirable behavior.  Phrase query slop (eg, "the cat"~2) will not match any
documents because common grams are indexed as shingled tokens that are adjacent to each other
(i.e. the_cat is indexed as a single term).

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