How to boost search based on index type in elasticsearch or lucene?

Question

I have three food type indices \"Italian\", \"Spanish\", \"American\". When the user searches \"Cheese\", documents from \"Italian\" appear to come up at the top. Is it poss

Answer 1

If querying several indices at once, it is possible to specify indices boost at the top level of object passed to Search API:

curl -XGET localhost:9200/italian,spanish,american/_search -d '
{
    "query":{"term":{"food_type":"cheese"}},
    "indices_boost" : {
        "ilalian" : 1.4,
        "spanish" : 1.3,
        "american" : 1.1
    }
}'

http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-request-index-boost.html#search-request-index-boost