Column-oriented NoSQL Databases

01. MariaDB ColumnStore adds interactive, ad hoc analytics at scale with columnar storage and massively parallel processing
02. CrateDB is the distributed, In-meory, and Columnar SQL database for relational and time‑series data
03. ClickHouse is column-oriented and allows to generate analytical reports using SQL queries in real-time.
04. Greenplum Database - An open-source massively parallel data platform for analytics, machine learning and AI
05. Use Apache HBase when you need random, realtime read/write access to your Big Data..
06. Apache Kudu is an open source distributed data storage engine that makes fast analytics on fast and changing data easy.
07. Hypertable was designed for the express purpose of solving the scalability problem, which is not handled well by a traditional RDBMS.
08. MonetDB is an open source column-oriented database