Change mapping for Metricbeat percentages from long to double

Elastic Stack Elasticsearch
1

I have an issue where percentages don't allow for sorting on some percentages, because they're long and no doubles. The percentages are as 0.23, 0.87.

curl -XGET "http://127.0.0.1:9200/metricbeat-2018.03.07/_mapping/doc

"system" : {
  "properties" : {
    "core" : {
      "properties" : {
        "id" : {
          "type" : "long"
        },
        "idle" : {
          "properties" : {
            "pct" : {
              "type" : "double"
            }
          }
        },
        "iowait" : {
          "properties" : {
            "pct" : {
              "type" : "long"
            }
          }
        },

Percentages that are doubles sort fine, but percentages that are longs don't sort.

I'd like to change the mappings on the new metricbeat-indices for percentages from long to double. How could I do this?

The metricbeat-template is almost empty, so I am not sure what populates the mappings of metricbeat.

We're using Metricbeat 6.2.2 and ElasticSearch 2.4

2

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