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  1. MariaDB Server
  2. MDEV-4677

GROUP_CONCAT not showing any output with group_concat_max_len >= 4Gb

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    Description

      Every query using a GROUP_CONCAT is showing an empty resultset with no NULL values on the column it should concatenate.

      A simple "select studentId, group_concat(grades) from studentGrades where sutdentId=1" is giving a wrong output with the above description.

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            serg Sergei Golubchik
            lweijl Lennart Weijl
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