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The following procedure was not possible if max_sp_recursion_depth is 0 create procedure show_proc() show create procedure show_proc; Actually there is no recursive call but the limit is checked. Solved by temporarily increasing the thread's limit just before the fetch from cache and decreasing after that. mysql-test/r/sp.result: update result mysql-test/t/sp.test: Test for bug #21416 SP: Recursion level higher than zero needed for non-recursive call sql/sp.cc: Increase the max_sp_recursion_depth temporarily for SHOW CREATE PROCEDURE call. This call is in fact not recursive but is counted as such. Outcome, it will work always but if max_sp_recursion_depth is reached we are going to cache one more sp_head instance.
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