Phrase query examples when implemented as shingles

phrase_queries_with_shingles.kibana

DELETE /phrases-shingle-example

PUT /phrases-shingle-example
{
  "settings": {
    "analysis": {
      "filter": {
        "my_shingle_filter": {
          "type": "shingle",
          "min_shingle_size": 2,
          "max_shingle_size": 2,
          "output_unigrams": false
        }
      },
      "analyzer": {
        "rebuilt_shingle": {
          "tokenizer": "standard",
          "filter": [
            "lowercase",
            "asciifolding",
            "my_shingle_filter"
          ]
        }
      }
    }
  },
  "mappings": {
    "properties": {
      "title": {
        "type": "text",
        "analyzer": "standard",
        "fields": {
          "shingle": {
            "type": "text",
            "analyzer": "rebuilt_shingle"
          }
        }
      }
    }
  }
}

# Have a look at the tokens after analysis
POST phrases-shingle-example/_analyze
{
  "field": "title.shingle", 
  "text": ["Raudona gėlėta suknelė"]
}

POST /phrases-shingle-example/_doc/1
{"title":"Raudona gėlėta suknelė"}
POST /phrases-shingle-example/_doc/2
{"title":"Gėlėta raudona suknelė"}
POST /phrases-shingle-example/_doc/3
{"title":"Raudona suknelė"}
POST /phrases-shingle-example/_doc/4
{"title":"Raudonos suknelės"}
GET phrases-shingle-example/_refresh

# two hits
GET /phrases-shingle-example/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "title.shingle": {
              "query": "raudona suknele",
            "_name": "phrase"
            }
          }
        }
      ]
    }
  }
}

# The same two hits despite the fact that "neriniuota" is mentioned
GET /phrases-shingle-example/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "title.shingle": {
              "query": "raudona suknele neriniuota",
            "_name": "phrase"
            }
          }
        }
      ]
    }
  }
}

# No hits at all because of "neriniuota" and "operator and",
# which enforces that all tokens from the query must be present in the document
GET /phrases-shingle-example/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "title.shingle": {
              "query": "raudona suknele neriniuota",
            "_name": "phrase",
            "operator": "and"
            }
          }
        }
      ]
    }
  }
}

# No hits at all because of "neriniuota" and minimum should match
# as an alternative to "operator and"
GET /phrases-shingle-example/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "title.shingle": {
              "query": "raudona suknele neriniuota",
            "_name": "phrase",
            "minimum_should_match": "100%"
            }
          }
        }
      ]
    }
  }
}