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  1. Spark
  2. SPARK-24959

Do not invoke the CSV/JSON parser for empty schema

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Incomplete
    • 2.3.1
    • None
    • SQL

    Description

      Currently JSON and CSV parsers are called even if required schema is empty. Invoking the parser per each line has some non-zero overhead. The action can be skipped. Such optimization should speed up count(), for example.

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              Unassigned Unassigned
              maxgekk Max Gekk
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