'''[https://crate.io/%|%CrateDB]'''  is an open source [RDBMS].

CrateDB's language is SQL but it uses the document-oriented approach of NoSQL style databases. CrateDB uses the SQL parser from Facebook [https://prestodb.io/%|%Presto], its own query analysis and distributed query engine. [https://www.elastic.co/%|%Elasticsearch] and [https://lucene.apache.org/core/%|%Lucene] is used for the transport protocol and cluster discovery and [https://netty.io/%|%Netty] for asynchronous event driven network application framework.

** Review **

   [https://aphyr.com/posts/332-jepsen-crate-0-54-9-version-divergence%|%Jepsen]:    Crate 0.54.9 version divergence

** Tcl Bindings **

   [https://github.com/ray2501/cratedb-tcl%|%cratedb-tcl%|%]:    Tcl extension and TDBC driver for CrateDB database

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[ray2501]: CrateDB [https://crate.io/docs/reference/protocols/http.html%|%REST API] supported parameter substitution,
I use [TclCurl] to access its HTTP Endpoint and [rl_json] to handle JSON string. cratedb-tcl is a prototype to to emulate prepare/execute behavior.

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