Last modified: 2013-09-26 16:41:37 UTC
Prefix search doesn't boost results from titles. In practice this turns out not to be that bad because prefix queries are reasonably uncommon and pages that are titled X seem to have X all over their text.
https://github.com/elasticsearch/elasticsearch/issues/3754
Turns out that the bug in Elasticsearch was caused by a bug in Lucene [1] which has been fixed. The fix will be incorporated into Elasticsearch when they upgrade to the as yet unreleased version of Lucene. At that rate we'll see a fix in a few months. Luckily, I discovered a work around. It is less efficient but we can live with that while the bug is fixed. I'll implement that now. [1] https://issues.apache.org/jira/browse/LUCENE-5245
Change 86103 had a related patch set uploaded by Manybubbles: Fix boosts on prefix queries. https://gerrit.wikimedia.org/r/86103
Change 86103 merged by jenkins-bot: Fix boosts on prefix queries. https://gerrit.wikimedia.org/r/86103
Merged.