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  1. Calcite
  2. CALCITE-4079

Dialect constants in SqlDialect can cause class initialization deadlock

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.23.0
    • 1.25.0
    • core

    Description

      /** @deprecated Use {@link AnsiSqlDialect#DEFAULT} instead. */
      @Deprecated // to be removed before 2.0
      public static final SqlDialect DUMMY =
          AnsiSqlDialect.DEFAULT;
      
      /** @deprecated Use {@link CalciteSqlDialect#DEFAULT} instead. */
      @Deprecated // to be removed before 2.0
      public static final SqlDialect CALCITE =
          CalciteSqlDialect.DEFAULT;

      SqlDialect#DUMMY and SqlDialect#CALCITE are marked deprecated and have not be used in any places.
      It would be better to remove them to avoid class initialization deadlock.

      Attachments

        1. CALCITE-4079.01.patch
          2 kB
          Stamatis Zampetakis
        2. image-2020-07-01-19-27-25-354.png
          6 kB
          TANG Wen-hui
        3. image-2020-07-01-19-51-32-397.png
          121 kB
          TANG Wen-hui

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              julianhyde Julian Hyde
              winipanda TANG Wen-hui
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