[db engine] Add support for Elasticsearch by dpgaspar · Pull Request #8441 · apache/incubator-supersetgithub.com
Add support for Elasticsearch. Includes a specific engine spec, most work done upstream onelasticsearch-dbapi(https://github.com/preset-io/elasticsearch-dbapi) that implements a PEP-249 DBAPI and SQLAlchemy dialect that "queries" X-Pack SQL (Limited to no support for opendistro yet)