Apache Calcite

Clone this repo:
  1. 379f41d [CALCITE-5717] RelBuilder.project of literals on a single-row Aggregate should create a Values by Julian Hyde · 33 hours ago main
  2. de4631f [CALCITE-4334] LITERAL_AGG, an internal aggregate function that returns a constant value by Julian Hyde · 1 year, 7 months ago
  3. ddb4200 Refactor: Add fields AggregateCall.rexList and RelBuilder.AggCall.preOperands by Julian Hyde · 7 weeks ago
  4. b2f59d7 [CALCITE-5697] RelBuilder.convert does not match nullability if top of stack is a Project by Julian Hyde · 7 weeks ago
  5. 7fc3e1b Refactor: Add RelNode.stripped by Julian Hyde · 3 months 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.

The project uses JIRA for issue tracking. For further information, please see the JIRA accounts guide.