Thanks Jack! I understand the intent of mm parameter, my question is that since the query terms being provided are not of fixed length I do not know what the mm should like for example "Ginseng","Siberian Ginseng" are my search terms. The first one can have an mm upto 1 and the second one can have an mm of upto 2 .
Should I dynamically set the mm based on the number of search terms in my query ? Thanks again. On Sun, Mar 30, 2014 at 5:20 AM, Jack Krupansky <j...@basetechnology.com>wrote: > 1. Yes, the default for mm is 1. > > 2. It depends on what you are really trying to do - you haven't told us. > > Generally, mm=1 is equivalent to q.op=OR, and mm=100% is equivalent to > q.op=AND. > > Generally, use q.op unless you really know what you are doing. > > Generally, the intent of mm is to set the minimum number of OR/SHOULD > clauses that must match on the top level of a query. > > -- Jack Krupansky > > -----Original Message----- From: S.L > Sent: Sunday, March 30, 2014 2:25 AM > To: solr-user@lucene.apache.org > Subject: eDismax parser and the mm parameter > > Hi All, > > I am planning to use the eDismax query parser in SOLR to give boost to > documents that have a phrase in their fields present. Now there is a mm > parameter in the edismax parser query , since the query typed by the user > could be of any length (i.e. >=1) I would like to set the mm value to 1 . I > have the following questions regarding this parameter. > > 1. Is it set to 1 by default ? > 2. In my schema.xml the defaultOperator is set to "AND" should I set it > to "OR" inorder for the edismax parser to be effective with a mm of 1? > > > Thanks in advance! >
