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  1. Spark
  2. SPARK-27764 Feature Parity between PostgreSQL and Spark
  3. SPARK-28566

window functions should not be allowed in window definitions

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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Won't Fix
    • 3.0.0
    • None
    • SQL
    • None

    Description

      Currently, Spark allows the usage of window functions inside window definitions, such as:

       SELECT rank() OVER (ORDER BY rank() OVER (ORDER BY random()));

      However, in PgSQL such behavior is now allowed:

      postgres=# SELECT rank() OVER (ORDER BY rank() OVER (ORDER BY random()));
ERROR:  window functions are not allowed in window definitions
LINE 1: SELECT rank() OVER (ORDER BY rank() OVER (ORDER BY random())...

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            Unassigned Unassigned
            DylanGuedes Dylan Guedes
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              Created:
              Updated:
              Resolved: