A very general question about Elastic-Search Syntaxes and Formats

I first fall in love with es, as it looked like it made things easier than using SQL QUERIES. So i wanted to do more and more and started using Kibana etc an realized that I've dived into a world with a lot of new idioms and ways of doing things.

  1. Painless Script (why was it urgently needed to create a new scripting language)
  2. Rison (why was it urgently needed to create a JSON copy?)
  3. expression Language

I'm just wondering what the general feedback is or if i am the only one thinking that elastic is trying to over-invent things?


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