So, what is happening here.

1st request:
You set index to test
type is not set
id is apple
It "guess" the type and send you the document from fruit type.

2nd request:
It's exactly the same request as the first one. So it gives you the same 
response.

To have the correct results, you should ask for:

GET /test/_mget?pretty
{
  "docs" : [
        {
            "_type" : "company",
            "_id" : "apple"
        },
        {
            "_type" : "fruit",
            "_id" : "apple"
        }
    ]
}


Or you should use unique ids for the whole index.

-- 
David Pilato | Technical Advocate | Elasticsearch.com
@dadoonet | @elasticsearchfr


Le 18 juin 2014 à 14:01:36, Hovsep Avakyan ([email protected]) a écrit:

First I just indexed 2 documents:
curl -XPUT http://192.168.0.118:9200/test/company/apple -d '{data:"Apple corp"}'
curl -XPUT http://192.168.0.118:9200/test/fruit/apple -d '{data:"Just red 
apple"}'

According to example above we have test index with 2 documents (both with 
"apple" id) in different types.
When we make curl -XGET http://192.168.0.118:9200/test/_mget?pretty -d 
'{ids:["apple","apple"]}'
We see this:
{
  "docs" : [ {
    "_index" : "test",
    "_type" : "fruit",
    "_id" : "apple",
    "_version" : 1,
    "found" : true, "_source" : {data:"Just red apple"}
  }, {
    "_index" : "test",
    "_type" : "fruit",
    "_id" : "apple",
    "_version" : 1,
    "found" : true, "_source" : {data:"Just red apple"}
  } ]
}


As you can see documents are duplicated.
So if we request curl -XGET http://192.168.0.118:9200/test/_mget?pretty -d 
'{ids:["apple","apple","apple"]}' we will see 3 documents in result set and so 
on.

I think the right way to resolve this issue is to ignore duplicate 
identificators in "ids" parameter.
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