Apache Calcite

Clone this repo:
  1. 0196bb6 [CALCITE-3744] Duplicate rule matches when RelSet gets merged by Haisheng Yuan · 6 days ago master
  2. 34e4a4f [CALCITE-3749] Ignore local.proproperties in RAT, Autostyle checks, and in .gitignore by Vladimir Sitnikov · 5 days ago
  3. 8fb5ca9 Cosmetic changes by yuzhao.cyz · 7 days ago
  4. 7e57379 [CALCITE-3747] Constructing BETWEEN with RelBuilder throws class cast exception by yuzhao.cyz · 7 days ago
  5. 44be09d Add Gradle Wrapper validation by Vladimir Sitnikov · 8 days ago

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Apache Calcite

Apache Calcite is a dynamic data management framework.

It contains many of the pieces that comprise a typical database management system but omits the storage primitives. It provides an industry standard SQL parser and validator, a customisable optimizer with pluggable rules and cost functions, logical and physical algebraic operators, various transformation algorithms from SQL to algebra (and the opposite), and many adapters for executing SQL queries over Cassandra, Druid, Elasticsearch, MongoDB, Kafka, and others, with minimal configuration.

For more details, see the home page.