Elasticsearch completion suggester on multifield with different weighting

Question

I\'m using the Completion Suggester in Elasticsearch to allow partial word matching queries. In my index (products_index), I\'d like to be able to query both the pro

Answer 1

The Completion Suggester is actually pretty limited in term of scoring: you cannot do that. The only thing you can do is boost some entries but not the attributes inside an entry (see the weight options http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-suggesters-completion.html#indexing).

That's because the Completion Suggester doesn't do a "real search" -> it doesn't use the index. It's a simple "dictionary" designed to do "prefix" expansions faster than with an index + inverted lists.

You should give a try to Algolia -> the engine is designed to answer to prefix searches in realtime + having different "weights" per attribute. Here is a tutorial to implement auto-complete menu targeting several fields