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  1. MariaDB ColumnStore
  2. MCOL-6088

alias: ERROR 1178 (42000): The storage engine for the table doesn't support MCS-2016: Non supported item on the GROUP BY list.

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    • 2025-11, 2026-1, 2026-2

    Description

      The following testcase throw:

      CREATE TABLE `test2` (
        `id` INT UNSIGNED NOT NULL,
        `GBP` DOUBLE UNSIGNED NOT NULL,
        `cat_id` INT UNSIGNED NOT NULL,
        `cat_id_level_0` INT UNSIGNED NOT NULL
      ) ENGINE=Columnstore;
       
      SELECT cat_id_level_0 AS entity_id, SUM(GBP) AS spend, cat_id_level_0 AS cat_id
      FROM test2
      GROUP BY cat_id;
      

      throw
      ERROR 1178 (42000): The storage engine for the table doesn't support MCS-2016: Non supported item 'cat_id' on the GROUP BY list.

      since 23.10.2

      Maybe a regression from MCOL-4234 or MCOL-4235

      Expected:

       
      Warning: #1052 Column 'cat_id' in group statement is ambiguous
      

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              alexey.antipovsky Aleksei Antipovskii
              Richard Richard Stracke
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                Updated:

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