Cherry-pick #16570 to 7.x: Add support for histogram type in fields.yml #16835
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Cherry-pick of PR #16570 to 7.x branch. Original message:
What does this PR do?
Add support for Elasticsearch Histogram type in fields.yml / mappings
Why is it important?
We plan to use histogram type in several efforts, including Prometheus module (#14843). It should help of making a better use of Elasticsearch when storing histograms, providing better performance on storage & querying times.
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