Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.5.0, 4.4.1
    • Labels:
      None

      Description

      The SIGN built-in function preserves the order of its input. This needs to be explicitly implemented in SignFunction by implementing the following method:

          public OrderPreserving preservesOrder() {
              return OrderPreserving.YES;
          }
      

      This will allow certain optimizations reducing the amount of memory and/or buffering that is required if SIGN is used in a GROUP BY or ORDER BY clause.

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            • Assignee:
              shuxi0ng Shuxiong Ye
              Reporter:
              jamestaylor James Taylor
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                Updated:
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