Get count of parent documents only

Elastic Stack Elasticsearch
1

Hi all,

I have a document which has some nested documents. When I do something like the following, the count that comes back includes the nested document:

GET loandetails2/loandetail/_count
{
"query": {
"bool": {
"should": [
{
"match": {
"visibility": {
"query": "3"
}
}
}
]
}
}
}

The above query is just a simplified version of what I'm actually doing. Sometimes I'm really trying to get a count based on fields in the parent document, and fields in the nested documents. But I only want the count that returns to be the number of parent documents.

How do I do that?

2

hey

you mixed a bit of different concepts in elasticsearch terminology here. nested is something different than parent/child than inner objects. Can you maybe explain your data model, and also provide the real query, plus sample documents, so that other can reproduce this?

--Alex

3

You're right, I'm not entirely sure the difference between those two concepts. I've simplified the data model for your purposes, and I've provided the mapping below:

  "loandetails": {
    "mappings": {
      "loandetail": {
        "properties": {
          "administrativeAgent": {
            "properties": {
              "id": {
                "type": "text",
                "fields": {
                  "keyword": {
                    "type": "keyword",
                    "ignore_above": 256
                  }
                }
              },
              "name": {
                "type": "text",
                "fields": {
                  "keyword": {
                    "type": "keyword",
                    "ignore_above": 256
                  }
                }
              }
            }
          },
          "properties": {
            "type": "nested",
            "properties": {
              "areaTotalsTotal": {
                "type": "long"
              },
              "markets": {
                "properties": {
                  "id": {
                    "type": "text",
                    "fields": {
                      "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                      }
                    }
                  },
                  "name": {
                    "type": "text",
                    "fields": {
                      "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                      }
                    }
                  }
                }
              },
              "municipality": {
                "properties": {
                  "id": {
                    "type": "text",
                    "fields": {
                      "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                      }
                    }
                  },
                  "name": {
                    "type": "text",
                    "fields": {
                      "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                      }
                    }
                  }
                }
              },
              "name": {
                "type": "text",
                "fields": {
                  "keyword": {
                    "type": "keyword",
                    "ignore_above": 256
                  }
                }
              },
              "propertySubType": {
                "type": "keyword"
              },
              "propertyType": {
                "type": "keyword"
              }
            }
          },
          "purpose": {
            "type": "keyword"
          },
          "structure": {
            "type": "keyword"
          },
         "visibility": {
            "type": "integer"
          }
        }
      }
    }
  }
}

And a real query would be a simple query like the following:

GET loandetails/loandetail/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "visibility": 1
          }
        }
      ]
    }
  }
}

Is this sufficient, or do you really need the sample documents. If you need that, I'd rather not put them in this forum.

4

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