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  1. Apache Drill
  2. DRILL-4891

Use field width when available for computing estimated memory costing

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 1.8.0
    • None
    • Query Planning & Optimization
    • None

    Description

      Drill currently uses an average field width (in addition to other parameters) for computing estimated memory cost for hash and sort based operations. The assumption is that the field is of ANY type. However, when a view with appropriate CAST is used, the relevant data type is available and we should leverage the correct field width for the costing calculations.

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            Unassigned Unassigned
            amansinha100 Aman Sinha
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            Dates

              Created:
              Updated: