Query_string not returning anything in Elasticsearch?

Question

Hello All i am having a problem that when i was using query_string with mappings given below everything was working fine i am just using default analyzers with no filters.

mappings : {
    places_area1: {
      properties:{
        area1         : {"type" : "string", "index": "analyzed"},
        city         : {"type" : "string", "index": "analyzed"}
        },
      }
    }
  }
}

but now when i am trying to use query_string with this mapping it is not working can someone please tell me what am i doing wrong, i guess its because of whitespace tokenizer but why.

"settings": {
    "index": {
      "analysis": {
        "analyzer": {
          "synonym_wildcard": {
            "tokenizer": "whitespace",
            "filter": ["filter_wildcard"]
          },
          "synonym_term": {
            "tokenizer": "keyword",
            "filter": ["filter_term"]
          },
          "simple_wildcard": {
            "tokenizer": "whitespace"
          }
        },
        "filter": {
          "filter_term": {
            "tokenizer": "keyword", // here you have to write this only for tokenizer keyword but not for whitespace
            "type": "synonym",
            "synonyms_path": "synonyms.txt",
          },
          "filter_wildcard": {
            "type": "synonym",
            "synonyms_path": "synonyms.txt",
          }
        }
      }
    }
  },
  mappings : {
    places_area1: {
      properties:{
        area1         : {"type" : "string", "index": "analyzed", "analyzer": "simple_wildcard"},
        city         : {"type" : "string", "fields": {
          "raw": {
            "type": "string",
            "analyzer": "synonym_term"
          },
          "raw_wildcard": {
            "type": "string",
            "analyzer": "synonym_wildcard"
          }
        } },
      }
    }
  }
}

what word or string you are trying to match with query_string? — ChintanShah25
– ChintanShah25, Commented Nov 20, 2015 at 19:55
dont focus on document its already there because when i am using wildcard search query it is returning Bangalore. So i guess problem is somewhere else ?? — aman verma
– aman verma, Commented Nov 20, 2015 at 20:26

ChintanShah25 · Accepted Answer · 2015-11-20 20:43:40Z

1

I think the problem could be your query is lowercased because by default "lowercase_expanded_terms" is true

 {
      "query": {
        "query_string": {
          "default_field": "state",
          "query": "Ban*",
          "lowercase_expanded_terms": false
        }
      }
    }

Now this should match Bangalore

answered Nov 20, 2015 at 20:43

ChintanShah25

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