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  1. Ignite
  2. IGNITE-20083

Sql. Investigate cost calculation for MAP/REDUCE aggregate.

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Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Duplicate
    • 3.0.0-beta1
    • None
    • sql
    • Docs Required, Release Notes Required

    Description

      After removing complex objects between MAP/REDUCE phase cost computations changed and some plans that were expected to choose MAP/REDUCE aggregates are now choose colocated aggregations or exchange is moved prior to MAP phase, and not inserted MAP/REDUCE phases.

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          is fixed by

          Bug - A problem which impairs or prevents the functions of the product. IGNITE-21580 Sql. Unable to optimise query using only two phase aggregates

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              mzhuravkov Maksim Zhuravkov
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                Created:
                Updated:
                Resolved: