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mariadb/mysql-test/suite/sql_sequence
Michael Widenius b378ddb3d3 MDEV 22785 Crash with prepared statements and NEXTVAL()
The problem was that a PREARE followed by a non prepared statement
using DEFAULT NEXT_VALUE() could change table->next_local to point to
a not persitent memory aria. The next EXECUTE would then try to use
the wrong pointer, which could cause a crash.
Fixed by reseting the pointer to it's old value when doing EXECUTE.
2021-08-26 07:07:46 +03:00
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