Strange elasticsearch search behaviour?

readme.txt

In tracking down a bug in an application, I found this behaviour in
elasticsearch which is not what I would expect. 

It seems that adding a new mapping type somehow breaks the analyzers in
another type. I see the behaviour in elasticsearch 1.4.4 which we are using and
in 1.7.4.

Can someone explain what is going on here? Am I doing something wrong?

actual output

{"acknowledged":true}
{"acknowledged":true}
{"_index":"text-index","_type":"user","_id":"AVG0hasF-Z9PaJz0rP2W","_version":1,"created":true}
{"took":1,"timed_out":false,"_shards":{"total":1,"successful":1,"failed":0},"hits":{"total":1,"max_score":0.30685282,"hits":[{"_index":"text-index","_type":"user","_id":"AVG0hasF-Z9PaJz0rP2W","_score":0.30685282,"_source":
    {
        "address": 
            {
                "description": "Walked"
            }
        
    }}]}}
{"acknowledged":true}
{"took":1,"timed_out":false,"_shards":{"total":1,"successful":1,"failed":0},"hits":{"total":0,"max_score":null,"hits":[]}}

demo.sh

ELASTICSEARCH=localhost:9200
INDEX=text-index

# Clear the index
curl -XDELETE $ELASTICSEARCH/$INDEX/
echo 

# Create and index
curl -XPUT -H "Content-Type: json" $ELASTICSEARCH/$INDEX/ -d '
    {
        "settings": {
            "index": {
                "number_of_shards": 1,
                "analysis": {
                    "filter": {
                        "stemmer": {
                            "type": "snowball",
                            "language": "English"
                        }
                    },
                    "analyzer": {
                        "custom": {
                            "type": "custom",
                            "tokenizer": "standard",
                            "filter": "stemmer"
                        }
                    }
                },
                "number_of_replicas": 0
            }
        },
        "mappings": {
            "user": {
                "dynamic": "strict",
                "properties": {
                    "address": {
                        "properties": {
                            "description": {
                                "type": "string",
                                "analyzer": "custom",
                                "store": "yes"
                            }
                        }
                    }
                }
            }

        }
    }
}'
echo 

# Index a document
curl -XPOST -H "Content-Type: json" $ELASTICSEARCH/$INDEX/user -d '
    {
        "address": 
            {
                "description": "Walked"
            }
        
    }'
echo 


sleep 1
# Search, should find something
curl -XPOST -H "Content-Type: json" $ELASTICSEARCH/$INDEX/user/_search -d '
{
    "query": {
        "filtered": {
            "query": {
                "simple_query_string": {
                    "default_operator": "AND",
                    "fields": [
                        "user.address.description"
                    ],
                    "query": "Walk"
                }
            }
        }
    }
}'
echo 


# Add a mapping called address, which happens to be the name of field a nested datatype
curl -XPUT -H "Content-Type: json" $ELASTICSEARCH/$INDEX/_mapping/address -d '
{ 

    "dynamic": "strict"
}'
echo


sleep 1
# Search, now returns no results!
curl -XPOST -H "Content-Type: json" $ELASTICSEARCH/$INDEX/user/_search -d '
{
    "query": {
        "filtered": {
            "query": {
                "simple_query_string": {
                    "default_operator": "AND",
                    "fields": [
                        "user.address.description"
                    ],
                    "query": "Walk"
                }
            }
        }
    }
}'
echo

expected output

{"acknowledged":true}
{"acknowledged":true}
{"_index":"text-index","_type":"user","_id":"AVG0hasF-Z9PaJz0rP2W","_version":1,"created":true}
{"took":1,"timed_out":false,"_shards":{"total":1,"successful":1,"failed":0},"hits":{"total":1,"max_score":0.30685282,"hits":[{"_index":"text-index","_type":"user","_id":"AVG0hasF-Z9PaJz0rP2W","_score":0.30685282,"_source":
    {
        "address": 
            {
                "description": "Walked"
            }
        
    }}]}}
{"acknowledged":true}
{"took":1,"timed_out":false,"_shards":{"total":1,"successful":1,"failed":0},"hits":{"total":1,"max_score":0.30685282,"hits":[{"_index":"text-index","_type":"user","_id":"AVG0hasF-Z9PaJz0rP2W","_score":0.30685282,"_source":
    {
        "address": 
            {
                "description": "Walked"
            }
        
    }}]}}