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  1. Spark
  2. SPARK-27627

Make option "pathGlobFilter" as a general option for all file sources

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.0.0
    • 3.0.0
    • SQL
    • None

    Description

      Background:
      The data source option "pathGlobFilter" is introduced for Binary file format: https://github.com/apache/spark/pull/24354 , which can be used for filtering file names, e.g. reading ".png" files only while there is ".json" files in the same directory.

      Proposal:
      Make the option "pathGlobFilter" as a general option for all file sources. The path filtering should happen in the path globbing on Driver.

      Motivation:
      Filtering the file path names in file scan tasks on executors is kind of ugly.

      Impact:
      1. The splitting of file partitions will be more balanced.
      2. The metrics of file scan will be more accurate.
      3. Users can use the option for reading other file sources.

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              Gengliang.Wang Gengliang Wang
              Gengliang.Wang Gengliang Wang
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              Dates

                Created:
                Updated:
                Resolved: