[Maps] Do not fetch geo_shape from docvalues

[nreese]

geo_points are fetched from doc_values to get a consistently formatted value. The logic is written very generically so that any field that supports doc values will be fetched with doc values.

Elasticsearch has recently merged support for geo_shape docvalues (elastic/elasticsearch#55037). Looks like there is a bug when requesting doc values for geo_shape fields. This is just a quick fix to not request doc values until the bug for geo_shapes gets figured out.

Example data set with geo_shape field.

PUT /example
{
    "mappings": {
        "properties": {
            "location": {
                "type": "geo_shape"
            }
        }
    }
}
POST /example/_doc
{
    "location" : {
        "type" : "linestring",
        "coordinates" : [[-77.03653, 38.897676], [-77.009051, 38.889939]]
    }
}

Working query

GET example/_search
{
  "query": {
    "match_all": {}
  }
}

Requesting docvalue_fields fails.

GET shapes/_search
{
  "query": {
    "match_all": {}
  },
  "docvalue_fields": ["location"]
}

{
  "error" : {
    "root_cause" : [
      {
        "type" : "unsupported_operation_exception",
        "reason" : "scripts and term aggs are not supported by geo_shape doc values"
      }
    ],
    "type" : "search_phase_execution_exception",
    "reason" : "all shards failed",
    "phase" : "query",
    "grouped" : true,
    "failed_shards" : [
      {
        "shard" : 0,
        "index" : "example",
        "node" : "Ef8381lmQ82FBAh45eWkZA",
        "reason" : {
          "type" : "unsupported_operation_exception",
          "reason" : "scripts and term aggs are not supported by geo_shape doc values"
        }
      }
    ],
    "caused_by" : {
      "type" : "unsupported_operation_exception",
      "reason" : "scripts and term aggs are not supported by geo_shape doc values",
      "caused_by" : {
        "type" : "unsupported_operation_exception",
        "reason" : "scripts and term aggs are not supported by geo_shape doc values"
      }
    }
  },
  "status" : 500
}

[elasticmachine]

Pinging @elastic/kibana-gis (Team:Geo)

[thomasneirynck]

Thank you for the quick turn-around.

Can you link the ES bug report here too? Ideally, this gets returned from ES as expected.

[nreese]

opened elastic/elasticsearch#55487 to track issue on Elasticsearch side

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 4b21cda

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