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  1. Core Server
  2. SERVER-59078

Implement 'merging' expressions for accumulators

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    • Type: Task
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      In addition to the accumulators 'accumulate' and 'finalize' steps, we'll need a way to 'merge' two accumulated states. This is necessary to implement a naive version of spilling (via sorted files or unsorted files) as well as sharding.

      Support for this should be added to the stage builder for accumulators.

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            Assignee:
            yoonsoo.kim Yoon Soo Kim
            Reporter:
            ian.boros Ian Boros
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