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https://github.com/crate/crate

CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.
https://github.com/crate/crate

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CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

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README 

        
.. image:: docs/_static/crate-logo.svg

    :alt: CrateDB

    :target: https://cratedb.com



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.. image:: https://github.com/crate/crate/workflows/CrateDB%20SQL/badge.svg?branch=master

    :target: https://github.com/crate/crate/actions?query=workflow%3A%22CrateDB+SQL%22



.. image:: https://img.shields.io/badge/docs-latest-brightgreen.svg

    :target: https://cratedb.com/docs/crate/reference/en/latest/



.. image:: https://img.shields.io/badge/container-docker-green.svg

    :target: https://hub.docker.com/_/crate/



|



`Help us improve CrateDB by taking our User Survey! `_



About

=====



CrateDB is a distributed SQL database that makes it simple to store and analyze

massive amounts of data in real-time.



CrateDB offers the `benefits`_ of an SQL database *and* the scalability and

flexibility typically associated with NoSQL databases. Modest CrateDB clusters

can ingest tens of thousands of records per second without breaking a

sweat. You can run ad-hoc queries using `standard SQL`_. CrateDB's blazing-fast

distributed query execution engine parallelizes query workloads across the

whole cluster.



CrateDB is well suited to `containerization`_, can be `scaled horizontally`_

using ephemeral virtual machines (e.g., `Kubernetes`_, `AWS`_, and `Azure`_)

with `no shared state`_. You can deploy and run CrateDB on any sort of network

— from personal computers to `multi-region hybrid clouds and the edge`_.



Features

========



- Use `standard SQL`_ via the `PostgreSQL wire protocol`_ or an `HTTP API`_.



- Dynamic table schemas and queryable objects provide

  document-oriented features in addition to the relational features of SQL.



- Support for time-series data, real-time full-text search, geospatial data

  types and search capabilities.



- Horizontally scalable, highly available and fault-tolerant clusters that run

  very well in virtualized and containerized environments.



- Extremely fast distributed query execution.



- Auto-partitioning, auto-sharding, and auto-replication.



- Self-healing and auto-rebalancing.



- `User-defined functions`_ (UDFs) can be used to extend the functionality of CrateDB.



Screenshots

===========



CrateDB provides an `Admin UI`_:



.. image:: crate-admin.gif

    :alt: Screenshots of the CrateDB Admin UI



Try CrateDB

===========



Run CrateDB via the official `Docker Image`_:



.. code-block:: console



    sh$ docker run --publish 4200:4200 --publish 5432:5432 --env CRATE_HEAP_SIZE=1g crate -Cdiscovery.type=single-node



Or visit the `installation documentation`_ to see all the available download and

install options.



Once you're up and running, head over to the `introductory docs`_. To interact

with CrateDB, you can use the Admin UI `sql console`_ or the `CrateDB shell`_

CLI tool. Alternatively, review the list of recommended `clients and tools`_

that work with CrateDB.



For container-specific documentation, check out the `CrateDB on Docker how-to

guide`_ or the `CrateDB on Kubernetes how-to guide`_.



Contributing

============



This project is primarily maintained by `Crate.io`_, but we welcome community

contributions!



See the `developer docs`_ and the `contribution docs`_ for more information.



Security

========



The CrateDB team and community take security bugs seriously. We appreciate your

efforts to `responsibly disclose`_ your findings, and will make every effort to

acknowledge your contributions.



If you think you discovered a security flaw, please follow the guidelines at

`SECURITY.md`_.



Help

====



Looking for more help?



- Try one of our `beginner tutorials`_, `how-to guides`_, or consult the

  `reference manual`_.



- Check out our `support channels`_.



- `Crate.io`_ also offers `CrateDB Cloud`_, a fully-managed *CrateDB Database

  as a Service* (DBaaS). The `CrateDB Cloud Tutorials`_ will get you started.



.. _Admin UI: https://cratedb.com/docs/crate/admin-ui/

.. _AWS: https://cratedb.com/docs/crate/tutorials/en/latest/cloud/aws/index.html

.. _Azure: https://cratedb.com/docs/crate/tutorials/en/latest/cloud/azure/index.html

.. _beginner tutorials: https://cratedb.com/docs/crate/tutorials/

.. _benefits: https://cratedb.com/product#compare

.. _clients and tools: https://cratedb.com/docs/crate/clients-tools/

.. _containerization: https://cratedb.com/docs/crate/tutorials/en/latest/containers/docker.html

.. _contribution docs: CONTRIBUTING.rst

.. _Crate.io: https://cratedb.com/company/team

.. _CrateDB clients and tools: https://cratedb.com/docs/crate/clients-tools/

.. _CrateDB Cloud Tutorials: https://cratedb.com/docs/cloud/

.. _CrateDB Cloud: https://cratedb.com/product/pricing

.. _CrateDB on Docker how-to guide: https://cratedb.com/docs/crate/tutorials/en/latest/containers/docker.html

.. _CrateDB on Kubernetes how-to guide: https://cratedb.com/docs/crate/tutorials/en/latest/containers/kubernetes/index.html

.. _CrateDB shell: https://cratedb.com/docs/crate/crash/

.. _developer docs: devs/docs/index.rst

.. _Docker image: https://hub.docker.com/_/crate/

.. _document-oriented: https://en.wikipedia.org/wiki/Document-oriented_database

.. _Dynamic table schemas: https://cratedb.com/docs/crate/reference/en/master/general/ddl/column-policy.html

.. _fulltext search: https://cratedb.com/docs/crate/reference/en/latest/general/dql/fulltext.html

.. _geospatial features: https://cratedb.com/docs/crate/reference/en/master/general/dql/geo.html

.. _how-to guides: https://cratedb.com/docs/crate/howtos/

.. _HTTP API: https://cratedb.com/docs/crate/reference/en/latest/interfaces/http.html

.. _installation documentation: https://cratedb.com/docs/crate/tutorials/en/latest/basic/index.html

.. _introductory docs: https://cratedb.com/docs/crate/tutorials/

.. _Kubernetes: https://cratedb.com/docs/crate/tutorials/en/latest/containers/kubernetes/index.html

.. _multi-region hybrid clouds and the edge: https://cratedb.com/docs/cloud/en/latest/tutorials/edge/index.html

.. _no shared state: https://en.wikipedia.org/wiki/Shared-nothing_architecture

.. _PostgreSQL wire protocol: https://cratedb.com/docs/crate/reference/en/latest/interfaces/postgres.html

.. _queryable objects: https://cratedb.com/docs/crate/reference/en/master/general/dql/selects.html#container-data-types

.. _reference manual: https://cratedb.com/docs/crate/reference/

.. _relational: https://en.wikipedia.org/wiki/Relational_model

.. _responsibly disclose: https://en.wikipedia.org/wiki/Coordinated_vulnerability_disclosure

.. _scaled horizontally: https://stackoverflow.com/questions/11707879/difference-between-scaling-horizontally-and-vertically-for-databases

.. _SECURITY.md: https://github.com/crate/crate/blob/master/SECURITY.md

.. _sql console: https://cratedb.com/docs/crate/admin-ui/en/latest/console.html#sql-console

.. _standard SQL: https://cratedb.com/docs/crate/reference/en/latest/sql/index.html

.. _support channels: https://cratedb.com/support

.. _time-series data: https://cratedb.com/docs/crate/howtos/en/latest/getting-started/normalize-intervals.html

.. _user-defined functions: https://cratedb.com/docs/crate/reference/en/latest/general/user-defined-functions.html