gistfile1.sh

curl -XPUT "http://localhost:9200/test" -d'
{
    "mappings": {
        "test" : {
            "properties": {
                "arrayfield" : {
                    "type": "string"    
                }
            }   
        }
    }
}'

curl -XPUT "http://localhost:9200/test/test/1" -d'
{
    "arrayfield" : ["a", "b", "c"]
}'

curl -XGET "http://localhost:9200/test/test/1"

curl -XGET "http://localhost:9200/test/test/_search" -d'
{
    "query": {
        "match": {
           "arrayfield": "b"
        }
    }
}'