https://spoon-elastic.com/all-elastic-search-post/deduplication-made-almost-easy-thanks-to-elasticsearchs-aggregations/
https://spoon-elastic.com/all-elastic-search-post/text-classification-with-elasticsearch-no-ai-needed/
https://spoon-elastic.com/all-elastic-search-post/runtime-fields-in-elasticsearch-and-kibana-tests-and-explanation/