I am using WordDelimiterFilter while indexing and searching both with the following attributes. Parser used is edismax. Solr version is 5.2.1.
*<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="1" splitOnCaseChange="1" preserveOriginal="1"/>* During search some of the results returned are not wanted. Following is the example. Search query: "3d image" Search results with 3-d image/3 d image/1d image are also returned. As per analysis page this is happening because of position increment in the token as explained below. On the analysis page it shows following four tokens for 3d and there positions. token position 3d 1 3 1 3d 1 d 2 image 3 Another example is "1d obj*" returning results containing "d-object" related result. This can bring a completely different search item. Here the token d is at position 2 which is causing the above matches. Please help me understand why this position increment is done? The position increment will also cause the "3d image" search fail on a document containing "3d image" as the "d" comes at position 2. Kindly help me understand the best practices of using WordDelimiterFilter or provide your inputs how we can resolve the issue. Thanks, Modassar
