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druid/extensions-core/datasketches
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Gian Merlino 77297f4e6f GroupBy array-based result rows. (#8196) 
* GroupBy array-based result rows.

Fixes #8118; see that proposal for details.

Other than the GroupBy changes, the main other "interesting" classes are:

- ResultRow: The array-based result type.
- BaseQuery: T is no longer required to be Comparable.
- QueryToolChest: Adds "decorateObjectMapper" to enable query-aware serialization
  and deserialization of result rows (necessary due to their positional nature).
- QueryResource: Uses the new decoration functionality.
- DirectDruidClient: Also uses the new decoration functionality.
- QueryMaker (in Druid SQL): Modifications to read ResultRows.

These classes weren't changed, but got some new javadocs:

- BySegmentQueryRunner
- FinalizeResultsQueryRunner
- Query

* Adjustments for TC stuff.
2019-07-31 16:15:12 -07:00
..
src
GroupBy array-based result rows. (#8196)
2019-07-31 16:15:12 -07:00
pom.xml
HllSketch Merge/Build BufferAggregators: Speed up init with prebuilt sketch. (#8194)
2019-07-31 08:18:42 -07:00
README.md
Upgrade various build and doc links to https. (#7722)
2019-05-21 11:30:14 -07:00

README.md

This module provides Druid aggregators based on https://datasketches.github.io/.

Credits: This module is a result of feedback and work done by following people.

https://github.com/cheddar https://github.com/himanshug https://github.com/leerho https://github.com/will-lauer