Doing fuzzy search or more_like_this query on minhash type?

[Fred12]

Hello,
I tried to perform a search query on the stored minhash_field... e.g with the fuzzy search or with the more_like_this query .... but I get an error it cannot use the query on type minhash:

GET /test_minhash/_doc/_search/
{
"query": {
"fuzzy" : {
"minhash_value" : {
"value": "reKED0r9qtIDAC8JIpx8Dw==",
"boost": 1.0,
"fuzziness": 5,
"prefix_length": 0,
"max_expansions": 100
}
}
},
"stored_fields": ["minhash_value"]
}

============================================================
{
"error": {
"root_cause": [
{
"type": "query_shard_exception",
"reason": "failed to create query: {\n "fuzzy" : {\n "minhash_value" : {\n "value" : "reKED0r9qtIDAC8JIpx8Dw==",\n "fuzziness" : "5",\n "prefix_length" : 0,\n "max_expansions" : 100,\n "transpositions" : false,\n "boost" : 1.0\n }\n }\n}",
"index_uuid": "FjpcyDT3RIK__bSA5JG1yg",
"index": "test_minhash"
}
],
"type": "search_phase_execution_exception",
"reason": "all shards failed",
"phase": "query",
"grouped": true,
"failed_shards": [
{
"shard": 0,
"index": "test_minhash",
"node": "A_Rbp6ykRxOP6R-KYRZTeA",
"reason": {
"type": "query_shard_exception",
"reason": "failed to create query: {\n "fuzzy" : {\n "minhash_value" : {\n "value" : "reKED0r9qtIDAC8JIpx8Dw==",\n "fuzziness" : "5",\n "prefix_length" : 0,\n "max_expansions" : 100,\n "transpositions" : false,\n "boost" : 1.0\n }\n }\n}",
"index_uuid": "FjpcyDT3RIK__bSA5JG1yg",
"index": "test_minhash",
"caused_by": {
"type": "illegal_argument_exception",
"reason": "Can only use fuzzy queries on keyword and text fields - not on [minhash_value] which is of type [minhash]"
}
}
}
]
},
"status": 400
}

what is the best approach how to do this?

[marevol]

See a source code of Fess.
Fess uses copy_bits_to.

[Fred12]

Thanks for the info, however, I was using it in kibana, but I couldnt retieve the bits keyword field in GET...

PUT /test_minhash_test
{
"index":{
"analysis":{
"analyzer":{
"minhash_analyzer":{
"type":"custom",
"tokenizer":"standard",
"filter":["minhash"]
}
}
}
}
}

PUT /test_minhash_test/_doc/_mapping
{
"_doc":{
"properties":{
"message": {
"type":"text",
"copy_to":"minhash_value"
},
"minhash_value":{
"type":"minhash",
"minhash_analyzer":"minhash_analyzer",
"store":true,
"copy_bits_to": "content_minhash_bits"
},
"content_minhash_bits": {
"type": "keyword",
"store":true
}
}
}
}

GET /test_minhash_test/_doc/_search/?pretty&stored_fields=*