[SOLR-5351] More Like This Handler uses only first field in mlt.fl when using stream.body

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.4
• Fix Version/s: 7.4
• Component/s: MoreLikeThis

Environment

Linux,Windows

• Assignee: Dawid Weiss
• Reporter: Zygmunt Wiercioch
• Created: 15/Oct/13 14:01
• Updated: 27/Sep/18 09:33
• Resolved: 25/May/18 09:41

Description

The documentation at: http://wiki.apache.org/solr/MoreLikeThisHandler indicates that one can use multiple fields for similarity in mlt.fl:
http://localhost:8983/solr/mlt?stream.body=electronics%20memory&mlt.fl=manu,cat&mlt.interestingTerms=list&mlt.mintf=0

In trying this, only one field is used.
Looking at the code, it only looks at the first field:

public DocListAndSet getMoreLikeThis( Reader reader, int start, int rows, List<Query> filters, List<InterestingTerm> terms, int flags ) throws IOException
{
// analyzing with the first field: previous (stupid) behavior
rawMLTQuery = mlt.like(reader, mlt.getFieldNames()[0]);

Issue Links

• relates to: SOLR-12812 Add support for arbitrary field:text pairs to streaming similarity calculation in MoreLikeThisHandler