Apache Calcite

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  1. d934d12 [CALCITE-3565] Explicitly cast assignable operand types to decimal for udf (DonnyZone) by wellfengzhu · 3 days ago master
  2. 1a3cb8c Site: Update homepage of Stamatis Zampetakis by Stamatis Zampetakis · 23 hours ago
  3. c0f63cc Site: Move "Fast federated SQL with Apache Calcite" in talks section and add video link by Stamatis Zampetakis · 23 hours ago
  4. 3f340bf [CALCITE-3547] SqlValidatorException because Planner cannot find UDFs added to schema (Chenxiao Mao) by seancxmao · 8 days ago
  5. 3a5234b [CALCITE-3496] Hive dialect and MS SQL dialect support with cube and with rollup (dz) by dz · 11 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.