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  1. MariaDB Server
  2. MDEV-38087

Unexpected error `Unknown column '???' in 'GROUP BY'`

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    • Q1/2026 Server Maintenance

    Description

      Hi,

      The following test case triggers an unexpected error `Unknown column '???' in 'GROUP BY'`

      CREATE TABLE IF NOT EXISTS t0(c0 TINYTEXT, c1 DECIMAL, c2 FLOAT) ;
      		 
      INSERT HIGH_PRIORITY IGNORE INTO t0(c2) VALUES('u^%pzX');
      		 
      INSERT INTO t0(c2) VALUES(0.7674682736888384);
      		 
      SELECT DISTINCTROW MAX(TRUE) AS ref0, (( EXISTS (SELECT 1)) && (0)) AS ref1, -1 AS ref2 FROM t0 GROUP BY  ((1) && ((t0.c0) < (t0.c1))), -1;

      I can reproduce this in 12.0.2-MariaDB-ubu2404

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-38720 ERROR 1054 (42S22): Unknown column '???' in 'ORDER BY'.

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-38660 Unexpected error "Unknown column 'c0' in 'ORDER BY'" in a prepared SELECT without ORDER BY

          • Major - Major loss of function.
          • Confirmed

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              serg Sergei Golubchik
              ChiZhang Chi Zhang
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                Created:
                Updated:
                Resolved:

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