> Unfortunately, the underscore is > being quite resilient =( > > I tried the solr.MappingCharFilterFactory and know the > mapping is working as > I am changing "c" => "q" just fine. But the underscore > refuses to go! > > I am baffled . . .
I just activated name="textCharNorm" in example schema.xml and added "_" => "xxx" to mapping-ISOLatin1Accent.txt I verified from http://localhost:8983/solr/admin/analysis.jsp that replacement is done without problems. Can you also test analysis.jsp? May be your documents has underscores having different Unicode values. I know three different Unicode valued characters that all look like "-" If thats the case you need to find their Unicode values and write them into mappings.txt.
