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  1. Spark
  2. SPARK-30375 Feature Parity between PostgreSQL and Spark (implementation-dependent behaviours)
  3. SPARK-27768

Infinity, -Infinity, NaN should be recognized in a case insensitive manner

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.0.0
    • 3.0.0
    • SQL
    • None

    Description

      When the inputs contain the constant 'infinity', Spark SQL does not generate the expected results.

      SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
FROM (VALUES ('1'), (CAST('infinity' AS DOUBLE))) v(x);
SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
FROM (VALUES ('infinity'), ('1')) v(x);
SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
FROM (VALUES ('infinity'), ('infinity')) v(x);
SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
FROM (VALUES ('-infinity'), ('infinity')) v(x);

       The root cause: Spark SQL does not recognize the special constants in a case insensitive way. In PostgreSQL, they are recognized in a case insensitive way. 

      Link: https://www.postgresql.org/docs/9.3/datatype-numeric.html 

       

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        Issue Links

          is duplicated by

          Sub-task - The sub-task of the issue SPARK-28060 Float/Double type can not accept some special inputs

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #25331

          Activity

            People

              dkbiswal Dilip Biswal
              smilegator Xiao Li
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              Dates

                Created:
                Updated:
                Resolved: