It sounds like completion suggest may not be exactly what you want. One way you could solve your problem is to use a shingle (ngram) analyzer in your mapping, combined with a prefix query. A description of the basic technique can be found here: http://developer.rackspace.com/blog/qbox.html#.UZ0yEWRATQ4
Qbox has a demo (here: http://be6c2e3260c3e2af000.qbox.io/_plugin/demo/tablemap/index.html) that uses this technique for auto-complete. Queries are matched using a prefix query, against a field that has been analyzed using a shingle filter. So, adapted to the information you've given, a solution might look like this: Create the index with the following analyzer: curl -XPUT http://[endpoint]/[index_name] { "settings": { "analysis": { "filter": { "shingle_filter": { "type": "shingle", "min_shingle_size": 2, "max_shingle_size": 5 } }, "analyzer": { "shingle_analyzer": { "type": "custom", "tokenizer": "standard", "filter": [ "lowercase", "shingle_filter" ] } } } } } and then apply this mapping: curl -XPUT http://[endpoint]/[index_name]/titles/_mapping { "titles": { "properties": { "DOC_ID": { "type":"string" }, "TITLE": { "type": "string", "index_analyzer": "shingle_analyzer" } } } } once you have some documents indexed you can query with "on" using the following query structure http://[endpoint]/_search { "query": { "prefix": { "TITLE": "on" } } } This should give you the behavior you are looking for. ----- Co-Founder and CTO, StackSearch, Inc. Hosted Elasticsearch at http://qbox.io -- View this message in context: http://elasticsearch-users.115913.n3.nabble.com/ElasticSearch-Auto-Completion-and-Term-Phrase-Suggesters-tp4046703p4046758.html Sent from the ElasticSearch Users mailing list archive at Nabble.com. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/1388279720679-4046758.post%40n3.nabble.com. For more options, visit https://groups.google.com/groups/opt_out.
