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      Hi,

      When trying to find a workaround for jira MDEV-13730, I generated a new code which does not use too many CTEs in the same scope.

      This is a sample new SQL code :

      https://raw.githubusercontent.com/antoinecarme/sklearn2sql-demo/master/tests/mariadb/MDEV-13730/new/GradientBoostingClassifier/iris/mysql/demo2_GradientBoostingClassifier_mysql.sql

      and when executed, it outputs the error :

      1146, "Table 'db.DT_node_lookup' doesn't exist"

      There is no such table, but a CTE is defined in the SQL code with the same name.

      At first, the last error seems to be a CTE resolution issue when CTEs are defined inside CTEs.

      I am working on debian, with a mariadb version 10.2.8.

      Thanks in advance

      Antoine

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              Assignee:
              igor Igor Babaev
              Reporter:
              AntoineC CARME Antoine
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