2970b49adc
BoundFilter: - For lexicographic bounds, use bitmapIndex.getIndex to find the start and end points, then union all bitmaps between those points. - For alphanumeric bounds, iterate through dimValues, and union all bitmaps for values matching the predicate. - Change behavior for nulls: it used to be that the BoundFilter would never match nulls, now it matches nulls if "" is allowed by the lower limit and not excluded by the upper limit. Interface changes: - BitmapIndex: add `int getIndex(value)` to make it possible to get the index for a value without retrieving the bitmap. - BitmapIndex: remove `ImmutableBitmap getBitmap(value)`, change callers to `getBitmap(getIndex(value))`. - BitmapIndexSelector: allow retrieving the underlying BitmapIndex through getBitmapIndex. - Clarified contract of indexOf in Indexed, GenericIndexed. Also added tests for SelectorFilter, NotFilter, and BoundFilter. |
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|---|---|---|
| api | ||
| aws-common | ||
| benchmarks | ||
| common | ||
| distribution | ||
| docs | ||
| examples | ||
| extensions-contrib | ||
| extensions-core | ||
| indexing-hadoop | ||
| indexing-service | ||
| integration-tests | ||
| processing | ||
| publications | ||
| server | ||
| services | ||
| .gitignore | ||
| .travis.yml | ||
| CONTRIBUTING.md | ||
| DruidCorporateCLA.pdf | ||
| DruidIndividualCLA.pdf | ||
| LICENSE | ||
| NOTICE | ||
| README.md | ||
| eclipse_formatting.xml | ||
| intellij_formatting.jar | ||
| pom.xml | ||
| upload.sh | ||
README.md
Druid
Druid is a distributed, column-oriented, real-time analytics data store that is commonly used to power exploratory dashboards in multi-tenant environments.
Druid excels as a data warehousing solution for fast aggregate queries on petabyte sized data sets. Druid supports a variety of flexible filters, exact calculations, approximate algorithms, and other useful calculations.
Druid can load both streaming and batch data and integrates with Samza, Kafka, Storm, and Hadoop.
License
More Information
More information about Druid can be found on http://www.druid.io.
Documentation
You can find the documentation for the latest Druid release on the project website.
If you would like to contribute documentation, please do so under
/docs/content in this repository and submit a pull request.
Tutorials
We have a series of tutorials to get started with Druid. If you are just getting started, we suggest going over the first Druid tutorial.
Reporting Issues
If you find any bugs, please file a GitHub issue.
Community
Community support is available on the druid-user mailing list(druid-user@googlegroups.com).
Development discussions occur on the druid-development list(druid-development@googlegroups.com).
We also have a couple people hanging out on IRC in #druid-dev on
irc.freenode.net.