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  1. Calcite
  2. CALCITE-3433

EQUALS operator between date/timestamp types returns false if the type is nullable

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.17.0, 1.18.0, 1.19.0, 1.20.0, 1.21.0
    • Fix Version/s: 1.22.0
    • Component/s: core

      Description

      sql

      select time0 = time1
      from (select
                  timestamp'2000-12-30 21:07:32' as time0,
                  timestamp'2000-12-30 21:07:32' as time1
                union all
                select
                  cast(null as timestamp) as time0,
                  cast(null as timestamp) as time1)
      

      answer is false

      but 

      sql

      select time0 = time1
      from
      (select
        timestamp'2000-12-30 21:07:32' as time0,
        timestamp'2000-12-30 21:07:32'as time1)
      

      answer is true

       

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              • Assignee:
                donnyzone Feng Zhu
                Reporter:
                jiezouSH jiezouSH
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                Dates

                • Created:
                  Updated:
                  Resolved:

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