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  1. Calcite
  2. CALCITE-1312

Return type of TIMESTAMP_ADD applied to a DATE should be TIMESTAMP if unit is smaller than DAY

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 1.9.0
    • core
    • None

    Description

      timestamp_add("MINUTE", 1, date '2016-06-15') returns 2016-06-15 since it returns a date and therefore truncates the minute informtion. timestamp_add should return timestamp instead of date for units less than date.

      timestamp_diff with date doesn't handle null properly (in type inference), converted type is INTEGER NOT NULL (when it should be null).

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            julianhyde Julian Hyde
            minjikim MinJi Kim
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