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  1. Spark
  2. SPARK-16406

Reference resolution for large number of columns should be faster

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    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.0
    • Fix Version/s: 2.4.0
    • Component/s: SQL
    • Labels:
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      Description

      Resolving columns in a LogicalPlan on average takes n / 2 (n being the number of columns). This gets problematic as soon as you try to resolve a large number of columns (m) on a large table: O(m * n / 2)

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            • Assignee:
              hvanhovell Herman van Hovell
              Reporter:
              hvanhovell Herman van Hovell
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                Updated:
                Resolved: