Hi Aman, From the last bullet in the “Caveats and remaining issues” section of m query-time multi-word synonyms blog: <https://lucidworks.com/2017/04/18/multi-word-synonyms-solr-adds-query-time-support/>, in part:
> sow=false changes the queries edismax produces over multiple fields when > any of the fields’ query-time analysis differs from the other fields’ [...] > This can change results in general, but quite significantly when combined > with the mm (min-should-match) request parameter: since min-should-match > applies per field instead of per term, missing terms in one field’s analysis > won’t disqualify docs from matching. One effective way of addressing this issue is to make all queried fields use the same analysis, e.g. by copy-fielding the subset of fields that are different into ones that are the same, and then querying against the target fields instead. -- Steve www.lucidworks.com > On Nov 28, 2017, at 5:25 AM, Aman Deep singh <amandeep.coo...@gmail.com> > wrote: > > Hi, > When sow is set to false then solr query is generated a little differently as > compared to sow=true > > Solr version -6.6.1 > > User query -Asus ZenFone Go ZB5 Smartphone > mm is set to 100% > qf=nameSearch^7 brandSearch > > field definition > > 1. nameSearch— > <fieldType name="text_word_delimiter" class="solr.TextField" > autoGeneratePhraseQueries="false" positionIncrementGap="100"> > <analyzer type="index"> > <tokenizer class="solr.WhitespaceTokenizerFactory"/> > <filter class="solr.PatternReplaceFilterFactory" pattern="&" > replacement="and"/> > <filter class="solr.PatternReplaceFilterFactory" pattern="[^\dA-Za-z > ]" replacement=" "/> > <filter class="solr.WordDelimiterFilterFactory" catenateNumbers="1" > generateNumberParts="1" splitOnCaseChange="1" generateWordParts="1" > preserveOriginal="1" catenateAll="1" catenateWords="1"/> > <filter class="solr.LowerCaseFilterFactory"/> > <filter class="solr.RemoveDuplicatesTokenFilterFactory"/> > </analyzer> > <analyzer type="query"> > <tokenizer class="solr.StandardTokenizerFactory"/> > <filter class="solr.PatternReplaceFilterFactory" pattern="&" > replacement="and"/> > <filter class="solr.PatternReplaceFilterFactory" pattern="[^\dA-Za-z > ]" replacement=" "/> > <filter class=“solr.ManagedSynonymGraphFilterFactory" > synonyms=“synonyms.txt"/> > <filter class="solr.WordDelimiterFilterFactory" catenateNumbers="0" > generateNumberParts="1" splitOnCaseChange="1" generateWordParts="1" > splitOnNumerics="1" preserveOriginal="0" catenateAll="0" catenateWords="0"/> > <filter class="solr.LowerCaseFilterFactory"/> > <filter class="solr.RemoveDuplicatesTokenFilterFactory"/> > </analyzer> > </fieldType> > > 2. brandSearch > <fieldType name="text_exact" class="solr.TextField" > autoGeneratePhraseQueries="true" positionIncrementGap="100"> > <analyzer type="index"> > <tokenizer class="solr.StandardTokenizerFactory"/> > <filter class="solr.LowerCaseFilterFactory"/> > </analyzer> > <analyzer type="query"> > <tokenizer class="solr.StandardTokenizerFactory"/> > <filter class="solr.LowerCaseFilterFactory"/> > </analyzer> > </fieldType> > > > with sow=false > "parsedquery":"(+DisjunctionMaxQuery((((brandSearch:asus brandSearch:zenfone > brandSearch:go brandSearch:zb5 brandSearch:smartphone)~5) | ((nameSearch:asus > nameSearch:zen nameSearch:fone nameSearch:go nameSearch:zb nameSearch:5 > nameSearch:smartphone)~7)^7.0)))/no_coord", > > with sow=true > "parsedquery":"(+(DisjunctionMaxQuery((brandSearch:asus | > (nameSearch:asus)^7.0)) DisjunctionMaxQuery((brandSearch:zenfone | > ((nameSearch:zen nameSearch:fone)~2)^7.0)) > DisjunctionMaxQuery((brandSearch:go | (nameSearch:go)^7.0)) > DisjunctionMaxQuery((brandSearch:zb5 | ((nameSearch:zb nameSearch:5)~2)^7.0)) > DisjunctionMaxQuery((brandSearch:smartphone | > (nameSearch:smartphone)^7.0)))~5)/no_coord", > > > > If you see the difference in parsed query in sow=false case mm is working as > field level while in case of sow=true mm is working across the field > > We need to use sow=false as it is the only way to use multiword synonyms > Any idea why it is behaving in this manner and any way to fix so that mm will > work across fields in qf. > > Thanks, > Aman Deep Singh
