2024
SuchkovTech - ES for 30 min Ru 17:20 of 28:39
    https://www.youtube.com/watch?v=vxE1aGTEnbE
    ! 10:50 index creation PUT-sample
    ! PUT lh:9200/first_index
    ! { "mappings": { "properties": { "title": {type": "text", "analyzer": "russian"}, "price": {"type": "float"}, "available": { "type": "boolean" }}}
    ! PUT lh:9200/first_index/_doc1/1 -d '{ "title": "...", "price": "...", ...}'
    ! { "_id": "1", "_type": "_doc", "_version": 1, "_shards": {...}, "_seq_no": 0, "_primary_term": "result": "created/updated", ... }
    ! PUT ... _doc1/1/_create -d'...' - to not update existing
    ! error -> root_cause
    ! GET ... _doc1/1
    !   if not found { ... "found": false }
    ! DELETE ->
    !   { ... "result": "deleted" }
    ! POST lh:9200/first_index/_bulk
    !
    ! ?GET lh:9200/first_index/_search
    ! { "from": 20, "size": 3}
    ! { "query": {"match": {"title": "cableless"}}}
    ! ... "_score": 6.57...
    https://github.com/SuchkovDenis/elasticexample
    https://suchkov.tech/elasticsearch-quick-start/
    https://suchkov.tech/wp-content/uploads/2024/08/ElasticSearch-Postman-collection.zip
        https://www.udemy.com/course/sql-postgresql
        https://stepik.org/course/207878/promo
2020
ProgrammingKnowledge - Elasticsearch Tutorial for Beginners 10:00 of 2:03:36
    https://www.youtube.com/watch?v=kjN7mV5POXc

https://speakerdeck.com/kimchy/elasticsearch-big-data-search-analytics
    https://www.youtube.com/watch?v=lpZ6ZajygDY

http://www.slideshare.net/clintongormley/scaling-realtime-search-and-analytics-with-elasticsearch
http://www.slideshare.net/clintongormley/down-and-dirty-with-elasticsearch
http://www.slideshare.net/sematext/scaling-massive-elasticsearch-clusters

http://www.slideshare.net/foundsearch/elasticsearch-in-production-london-version