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Jihoon Son 52d7f74226 Add streaming aggregation as the last step of ConcurrentGrouper if data are spilled (#4704) 
* Add steaming grouper

* Fix doc

* Use a single dictionary while combining

* Revert GroupByBenchmark

* Removed unused code

* More cleanup

* Remove unused config

* Fix some typos and bugs

* Refactor Groupers.mergeIterators()

* Add comments for combining tree

* Refactor buildCombineTree

* Refactor iterator

* Add ParallelCombiner

* Add ParallelCombinerTest

* Handle InterruptedException

* use AbstractPrioritizedCallable

* Address comments

* [maven-release-plugin] prepare release druid-0.11.0-sg

* [maven-release-plugin] prepare for next development iteration

* Address comments

* Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit 5c6b31e488.

* Revert "[maven-release-plugin] prepare release druid-0.11.0-sg"

This reverts commit 0f5c3a8b82.

* Fix build failure

* Change list to array

* rename sortableIds

* Address comments

* change to foreach loop

* Fix comment

* Revert keyEquals()

* Remove loop

* Address comments

* Fix build fail

* Address comments

* Remove unused imports

* Fix method name

* Split intermediate and leaf combine degrees

* Add comments to StreamingMergeSortedGrouper

* Add more comments and fix overflow

* Address comments

* ConcurrentGrouperTest cleanup

* add thread number configuration for parallel combining

* improve doc

* address comments

* fix build
 		2017-10-17 23:24:08 -07:00
..
comparisons update compares some more (#3158) 2016-06-16 18:34:43 -07:00
configuration Make float default representation for DoubleSum/Min/Max aggregators (#4944) 2017-10-16 17:17:22 -07:00
dependencies Fix a bunch of broken links in the docs. 2016-03-23 10:21:28 -07:00
design Add /readiness to HistoricalResource (#4916) 2017-10-11 20:35:52 -07:00
development adding new post aggregators for test statistics to druid-stats extension (#4532) 2017-10-09 23:43:27 -07:00
ingestion Prioritized locking (#4550) 2017-10-11 23:16:31 -07:00
misc SQL: Upgrade to Calcite 1.14.0, some refactoring of internals. (#4889) 2017-10-10 12:44:05 -07:00
operations Add streaming aggregation as the last step of ConcurrentGrouper if data are spilled (#4704) 2017-10-17 23:24:08 -07:00
querying Add streaming aggregation as the last step of ConcurrentGrouper if data are spilled (#4704) 2017-10-17 23:24:08 -07:00
tutorials Outdated property names (#4146) 2017-04-05 16:37:38 -07:00
toc.md Move scan-query from a contrib extension into core. (#4751) 2017-09-13 09:51:24 -07:00