Apache Calcite
Open-source data management framework
Developer(s) | Apache Software Foundation |
---|---|
Initial release | June 27, 2014; 10 years ago (2014-06-27)[1] |
Stable release | 1.37.0 (May 6, 2024; 3 months ago (2024-05-06)[2]) [±] |
Repository | Calcite Repository |
Written in | Java |
Operating system | Cross-platform |
Type | SQL database |
License | Apache License 2.0 |
Website | calcite |
Apache Calcite is an open source framework for building databases and data management systems. It includes a SQL parser, an API for building expressions in relational algebra, and a query planning engine. As a framework, Calcite does not store its own data or metadata, but instead allows external data and metadata to be accessed by means of plug-ins.
Several other Apache projects use Calcite.[3] Hive uses Calcite for cost-based query optimization;[4] Drill and Kylin use Calcite for SQL parsing and optimization; Samza and Storm use Calcite for streaming SQL. As of August 2016[update], Apex, Phoenix and Flink have projects under development that use Calcite.
References
- ^ Julian Hyde. "Optiq-0.8 release announcement". Apache Software Foundation.
- ^ "Downloads". calcite.apache.org. Apache Software Foundation. Retrieved 2024-05-14.
- ^ "Powered by Calcite". Apache Software Foundation.
- ^ Julian Hyde. "Cost-based query optimization in Apache Hive 0.14", Hortonworks, 24 September 2014.
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