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apache/calcite
Apache Calcite
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<!-- {% comment %} Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. {% endcomment %} --> [](https://central.sonatype.com/artifact/org.apache.calcite/calcite-core) [](https://github.com/apache/calcite/actions?query=branch%3Amain) # 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](http://calcite.apache.org). The project uses [JIRA](https://issues.apache.org/jira/browse/CALCITE) for issue tracking. For further information, please see the [JIRA accounts guide](https://calcite.apache.org/develop/#jira-accounts).
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