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The bug caused a crash of the server if a subquery with ORDER BY DESC used the range access method. The bug happened because the method QUICK_SELECT_DESC::reset was not reworked after MRR interface had been introduced. mysql-test/r/subselect.result: Added a test case for bug #20869. mysql-test/t/subselect.test: Added a test case for bug #20869.
23 KiB
23 KiB