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  1. Spark
  2. SPARK-32532

Improve ORC read/write performance on nested structs and array of structs

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Details

    • Improvement
    • Status: In Progress
    • Major
    • Resolution: Unresolved
    • 3.0.0
    • None
    • SQL
    • None

    Description

      Have some improvements for ORC file format to reduce time taken when reading/writing nested/array'd structs. Using benchmarks in SPARK-32531 was able to improve performance on branch-3.0 as follows (measurements in seconds):

      Read:
      Nested Structs: 184 -> 44
      Array of Struct: 66 -> 15

      Write
      Nested Structs: 543 -> 39
      Array of Struct: 330 -> 37

      Will be putting up the PR soon with the changes.

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        Issue Links

          relates to

          Improvement - An improvement or enhancement to an existing feature or task. SPARK-32550 Make SpecificInternalRow constructors faster by using while loops instead of maps

          • Major - Major loss of function.
          • Resolved

          Test - A new unit, integration or system test. SPARK-32531 Add benchmarks for nested structs and arrays for different file formats

          • Major - Major loss of function.
          • In Progress

          Test - A new unit, integration or system test. SPARK-32731 Add tests for arrays/maps of nested structs to ReadSchemaSuite to test structs reuse

          • Major - Major loss of function.
          • In Progress
          links to

          Pull request #29353 [Github] Pull Request #29353 (msamirkhan)

          Pull request #29353 [Github] Pull Request #29353 (msamirkhan)

          Activity

            People

              Unassigned Unassigned
              samkhan Muhammad Samir Khan
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              Dates

                Created:
                Updated: