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  1. MariaDB Server
  2. MDEV-32949

Undesired max_recursive_iterations warning

Details

    • Bug
    • Status: Open (View Workflow)
    • Major
    • Resolution: Unresolved
    • 11.1.2
    • None
    • Optimizer - CTE
    • None
    • Win64

    Description

      Sample query

      WITH a AS (SELECT 5 mx)
      		 
      SELECT column_value FROM a,
      		 
      (
      		 
      WITH recursive r as
      		 
      (SELECT 1 level
      		 
      union all
      		 
      select LEVEL+1 FROM r
      		 
      )
      		 
      select LEVEL column_value FROM r
      		 
      ) i
      		 
      WHERE i.column_value<=a.mx

      runs OK, but on insert or temporary table create:

      CREATE OR REPLACE TEMPORARY TABLE tmp0 as
      		 
      WITH a AS (SELECT 5 mx)
      		 
      SELECT column_value FROM a,
      		 
      (
      		 
      WITH recursive r as
      		 
      (SELECT 1 level
      		 
      union all
      		 
      select LEVEL+1 FROM r
      		 
      )
      		 
      select LEVEL column_value FROM r
      		 
      ) i
      		 
      WHERE i.column_value<=a.mx

      it pops with error/warning "Query execution was interrupted. The query exceeded max_recursive_iterations = 100000. The query result may be incomplete".
      I'd like to lose that unreasonable warning, just like it goes silent in select action. How can I do it?

      Attachments

        Activity

          Ascending order - Click to sort in descending order
          balta Tadas Balaišis created issue -
          alice Alice Sherepa made changes -
          Field Original Value New Value
          Component/s Optimizer - CTE [ 13513 ]
          serg Sergei Golubchik made changes -
          Priority Blocker [ 1 ] Major [ 3 ]

          People

            Unassigned Unassigned
            balta Tadas Balaišis
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            Dates

              Created:
              Updated:

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