Make float default representation for DoubleSum/Min/Max aggregators (#4944) (#4965)

* Introduce System wide property to select how to store double.
Set the default to store as float

Change-Id: Id85cca04ed0e7ecbce78624168c586dcc2adafaa

* fix tests

Change-Id: Ib42db724b8a8f032d204b58c366caaeabdd0d939

* Change the property name

Change-Id: I3ed69f79fc56e3735bc8f3a097f52a9f932b4734

* add tests and make default distribution store doubles as 64bits

Change-Id: I237b07829117ac61e247a6124423b03992f550f2

* adding mvn argument to parallel-test profile

Change-Id: Iae5d1328f901c4876b133894fa37e0d9a4162b05

* move property name and helper function to io.druid.segment.column.Column

Change-Id: I62ea903d332515de2b7ca45c02587a1b015cb065

* fix docs and clean style

Change-Id: I726abb8f52d25dc9dc62ad98814c5feda5e4d065

* fix docs

Change-Id: If10f4cf1e51a58285a301af4107ea17fe5e09b6d
13 files changed
tree: f1abe3361a4ba1bed0c6b955e28b952f0eabae58
  1. .idea/
  2. api/
  3. aws-common/
  4. benchmarks/
  5. bytebuffer-collections/
  6. ci/
  7. codestyle/
  8. common/
  9. distribution/
  10. docs/
  11. examples/
  12. extendedset/
  13. extensions-contrib/
  14. extensions-core/
  15. hll/
  16. indexing-hadoop/
  17. indexing-service/
  18. integration-tests/
  19. java-util/
  20. processing/
  21. publications/
  22. server/
  23. services/
  24. sql/
  25. .gitignore
  26. .travis.yml
  27. CONTRIBUTING.md
  28. druid_intellij_formatting.xml
  29. DruidCorporateCLA.pdf
  30. DruidIndividualCLA.pdf
  31. eclipse.importorder
  32. eclipse_formatting.xml
  33. INTELLIJ_SETUP.md
  34. LICENSE
  35. NOTICE
  36. pom.xml
  37. README.md
  38. upload.sh
README.md

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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, Spark, and Hadoop.

License

Apache License, Version 2.0

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.

Getting Started

You can get started with Druid with our quickstart.

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.

Contributing

Please follow the guidelines listed here.