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  1. MariaDB Server
  2. MDEV-38168

Lots of joins can crash the server

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Details

    • Bug
    • Status: In Review (View Workflow)
    • Blocker
    • Resolution: Unresolved
    • 10.6, 10.11, 11.4, 11.8
    • 10.6, 10.11, 11.4, 11.8
    • Parser
    • None
    • Can result in hang or crash

    Description

      Queries like

      SELECT * FROM t1 JOIN t1 x0 ON t1
      		 
                       JOIN t1 x1 ON t1
      		 
                       JOIN t1 x2 ON t1
      		 
                       ...
      		 
                       JOIN t1 x14000 ON t1

      might get out of stack when recursively invoking JOIN::free_pushdown_handlers().

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            psergei Sergei Petrunia
            serg Sergei Golubchik
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            Dates

              Created:
              Updated:

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