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Pre-merge cleanup: removed old aggregator interfaces, and updated codes to use the new interface.

git-svn-id: https://hyracks.googlecode.com/svn/branches/aggregators_dev_next@963 123451ca-8445-de46-9d55-352943316053

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Added getFieldCount() call to RecordDescriptor

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_dev_next@881 123451ca-8445-de46-9d55-352943316053

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Update legacy tuple slot length computation code, regarding to issue #51

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_dev_next@835 123451ca-8445-de46-9d55-352943316053

Update legacy codes on computing the field slot length in aggregators are updated. And, the incorrect initialization of the sum aggregator is fixed. Fixes issue 51.

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_dev_next@833 123451ca-8445-de46-9d55-352943316053

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Merged 500:541 from trunk

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_scheduling@542 123451ca-8445-de46-9d55-352943316053

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Merged -r 525:527 from hyracks_dev_next into branch

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_indexes@528 123451ca-8445-de46-9d55-352943316053

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Merged -r 502:525 from hyracks_dev_next into branch

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_indexes@527 123451ca-8445-de46-9d55-352943316053

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clean up code formatting and comments

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_dev_next@526 123451ca-8445-de46-9d55-352943316053

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move modified ext-gby from algebricks back to hyracks

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_dev_next@524 123451ca-8445-de46-9d55-352943316053

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Merged trunk -r 363:437 into branch

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_indexes@468 123451ca-8445-de46-9d55-352943316053

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Merged -r 356:400 from trunk

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_scheduling@401 123451ca-8445-de46-9d55-352943316053

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Merged in 32 bit tuple fields offset patch from Rares

git-svn-id: https://hyracks.googlecode.com/svn/trunk/hyracks@400 123451ca-8445-de46-9d55-352943316053

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Partial commit. Code compiles, but not complete

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_scheduling@383 123451ca-8445-de46-9d55-352943316053

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Merged in trunk@304:314

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_scheduling@317 123451ca-8445-de46-9d55-352943316053

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Fixed the code format based on the Hyracks code format profile.

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_spilling_groupby@309 123451ca-8445-de46-9d55-352943316053

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Added external hash group operator. Main changes include: - added external hash group operator and its helper hash table class, and test cases; - modified aggregator factories to support external group operator; - added some aggregators (min/max, sum); - added a plain file writer to output plain text onto disk.

git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_spilling_groupby@301 123451ca-8445-de46-9d55-352943316053

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Merged r289:290 from the hyracks_io_management branch

git-svn-id: https://hyracks.googlecode.com/svn/trunk/hyracks@291 123451ca-8445-de46-9d55-352943316053

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Added Nick's patch that provides IHyracksContext to createAggregator().

git-svn-id: https://hyracks.googlecode.com/svn/trunk/hyracks@146 123451ca-8445-de46-9d55-352943316053

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Added Binary Preclustered Group Operator. Preclustered and Hash based group operators now use the same aggregator interface. Added a Frame Writing Operator.

git-svn-id: https://hyracks.googlecode.com/svn/trunk/hyracks@132 123451ca-8445-de46-9d55-352943316053

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Renamed packages in dataflow-common

git-svn-id: https://hyracks.googlecode.com/svn/trunk/hyracks@42 123451ca-8445-de46-9d55-352943316053

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Refactored Hyracks into runtime/dataflow-common/dataflow-std/server

git-svn-id: https://hyracks.googlecode.com/svn/trunk/hyracks@38 123451ca-8445-de46-9d55-352943316053

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