bump.. On Mon, Jan 7, 2019 at 11:53 AM Wei <weiwan...@gmail.com> wrote:
> Thanks Thomas. You mentioned "Also there is no need for the > FlattenGraphFilter", that's quite interesting because the Solr > documentation says it's mandatory for indexing: > https://lucene.apache.org/solr/guide/7_6/filter-descriptions.html. Is > there any more explanation for this? > > Best regards, > Wei > > > On Mon, Jan 7, 2019 at 7:56 AM Thomas Aglassinger < > t.aglassin...@netconomy.net> wrote: > >> Hi Wei, >> >> here's a fairly simple field type we currently use in a project that >> seems to do the job with graph synonyms. Maybe this helps as a starting >> point for you: >> >> <fieldType name="text_de" class="solr.TextField" >> positionIncrementGap="100"> >> <analyzer> >> <tokenizer class="solr.WhitespaceTokenizerFactory" /> >> <filter class="solr.ManagedSynonymGraphFilterFactory" >> managed="de" /> >> <filter class="solr.ManagedStopFilterFactory" >> managed="de" /> >> <filter class="solr.WordDelimiterGraphFilterFactory" >> preserveOriginal="1" >> generateWordParts="1" generateNumberParts="1" >> catenateWords="1" >> catenateNumbers="1" catenateAll="0" >> splitOnCaseChange="1" /> >> <filter class="solr.LowerCaseFilterFactory" /> >> <filter class="solr.ASCIIFoldingFilterFactory" /> >> <filter class="solr.GermanStemFilterFactory" /> >> <filter class="solr.RemoveDuplicatesTokenFilterFactory"/> >> </analyzer> >> </fieldType> >> >> As you can see we use the same filters for both indexing and query, so >> this might have some impact on positional queries but so far it seems >> negligible for the short synonyms we use in practice. Also there is no need >> for the FlattenGraphFilter. >> >> The WhitespaceTokenizerFactory ensures that you can define synonyms with >> hyphens like mac-book -> macbook. >> >> Best regards, Thomas. >> >> >> On 05.01.19, 02:11, "Wei" <weiwan...@gmail.com> wrote: >> >> Hello, >> >> We are upgrading to Solr 7.6.0 and noticed that SynonymFilter and >> WordDelimiterFilter have been deprecated. Solr doc recommends to use >> SynonymGraphFilter and WordDelimiterGraphFilter instead >> I guess the StopFilter mess up the SynonymGraphFilter output? Not sure >> if it's a solr defect or there is a guideline that StopFilter should >> not be put after graph filters. >> >> Thanks in advance for you input. >> >> >> Thanks, >> >> Wei >> >> >>
