QuestDB is a time series database built for non-compromising performance, data accessibility and operational simplicity. It bridges the
gap between traditional relational and time series databases by providing fast SQL access to both types of data. Existing features and
component are:
License changed from Apache 2.0 to AGPLv3. Please see LICENSE.txt for full details.
- SQL language supporting filtering, aggregation, joins, time series joins, sub-queries, analytic functions
- SQL language optimiser to help making queries declarative rather than procedural
- Build-in http server component and Web Console, supporting data import and query execution
- REST API for data import, query and export
- Data import for delimited text files (CSV, tab and pipe) with automatic data type recognition
- Programmatic data import and query from Java programming language
- Data replication engine
- Ticker plant support with automatic failover
- Can be used as both standalone server or embedded database thanks to small library size and no external dependencies
- Minimal memory footprint, data streaming query engine and no-GC operation
I feel very passionate about this project and I spend crazy amount of time to make it the best it can be. Yet I am having a day job, which is in no way helpful to my passion. AGPLv3 is a stepping stone to enable me to work on NFSdb full time and bring you guys the best database you have ever seen.
__9 June 2015__ Release roadmap
## License
I realise that it has been a while since last release, but I would like to reassure the reader that this project is very much alive. The [roadmap for next](roadmap.md) release is quite large but we are chipping away from this list quite steadily. So stay with us!
__22 Jan 2015__. 3.0.0-SNAPSHOT is available for testing.
There is a number of exciting features planned for 3.0 release. Although main focus is on super-fast, functional query language and data accessibility, we have some interesting features ready to go:
- generic data access; for on-the-fly data definition and non-ORM data access
- write cluster and automatic failover for data producers
__14 Oct 2014__. [Release 2.1.0](http://github.nfsdb.org/release-notes/) - stable
This is security-centric release aimed at having replication meet security standards. Features supported in this release are: SSL, Certificate auth (Mutual-auth), Shared Key Auth, Kerberso Auth, Kerberos SSO Auth (Windows only) and client auto-reconnect.
## Overview
If you are looking to find out what NFSdb project is about please visit our [front page] (http://github.nfsdb.org)
QuestDB is licensed under GNU Affero General Public License (AGPLv3).
## Documentation
We are actively maintaining Wiki pages. Whether you are looking for [quick-start guide](https://github.com/NFSdb/nfsdb/wiki/Getting-started) or details on particular feartures, we should have that covered on our [wiki](https://github.com/NFSdb/nfsdb/wiki). For anything that is missing, please raise an [issue](https://github.com/NFSdb/nfsdb/issues) or submit a pull request.
## Examples
If you prefer to learn by example, we have a [broad collection of examples](https://github.com/NFSdb/nfsdb/tree/master/nfsdb-examples/src/main/java/org/nfsdb/examples) going in our repo, make sure you check them out.
Not yet. SQL language is well known and WebUI is simple. I'm relying on that for now. Of course documentation is on my to-do list.
## Releases
All release are in Maven Central. We have [Maven page](http://github.nfsdb.org/maven/) for quick-start.
QuestDB is a massive re-write of what use to be NFSdb. This is a Beta software and so far there are no releases.
