commit | ff43dcb95caa251e5fc8120980fc70c8fea8ac40 | [log] [tgz] |
---|---|---|
author | yuzhao.cyz <yuzhao.cyz@alibaba-inc.com> | Mon Oct 21 19:58:11 2019 +0800 |
committer | Danny Chan <yuzhao.cyz@alibaba-inc.com> | Wed Oct 23 10:33:14 2019 +0800 |
tree | c5b10640b3b5fcf92d65774ef7c4bf1008aec3ad | |
parent | 9c5b2d97531d3b2fd8a44d13c0632e381e8c13be [diff] |
[CALCITE-3416] SQL Dialects DEFAULTs should be more extensible * In each SqlDialect sub-class, add a new public static final member named DEFAULT_CONTEXT used to extend the dialect * Make SqlDialect.emptyContext private, we should now always use SqlDialect.EMPTY_CONTEXT instead
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.