Get distinct result by using multi_match and suggestion

Elastic Stack Elasticsearch
1

Is there a way to solve the following problem?

I have created a search field with suggestions functionality. The user is
able to search for names, categories, etc. These fields are mapped like:

{
"settings": {
"analysis": {
"analyzer": {
"autocomplete": {
"type": "custom",
"tokenizer": "edge_ngram_tokenizer",
"filter": [ "lowercase" ]
}
},
"tokenizer": {
"edge_ngram_tokenizer": {
"type": "edgeNGram",
"min_gram": 1,
"max_gram": 20,
"token_chars": ["letter", "digit"]
}
}
}
},
"mappings": {
"my_type": {
"dynamic": "strict",
"properties": {
"id": {
"type": "long"
},
"name": {
"type": "string",
"analyzer": "english",
"fields": {
"autocomplete": {

  •                "type": "string", *

  •                "index_analyzer": "autocomplete", *

  •                "search_analyzer": "standard"*

  •              }*
          }
      },
      "*category*": {
          "type": "string",
          "analyzer": "english",
          "fields": {
            *"autocomplete": {*

  •                "type": "string", *

  •                "index_analyzer": "autocomplete", *

  •                "search_analyzer": "standard"*

  •              }*
          }
      },

...

Now when i do something like this:
curl -XGET "http://localhost:9200/my_index/my_type/_search" -d'
{
"_source": false,
"query": {
"multi_match": {
"query": "pet",
"fields": [
"*.autocomplete"
]
}
}
}'

I get results like these:

  • Peter
  • Peter
  • Peter
  • Petra
  • Petra
    etc.

How can I reduce (distinct) the results on server side like these?

  • Peter
  • Petra
  • etc.

thx, Ramy

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