# # BUG#27899274 - [MYSQL 8.0 GA DEBUG BUILD] ASSERTION `!IS_SET()' FAILED. # # CREATE TABLE test.t1(col INT); SET SESSION debug= "+d, enable_stack_overrun_post_alter_commit"; ALTER TABLE test.t1 ADD COLUMN col1 CHAR; Got one of the listed errors SET SESSION debug= "-d, enable_stack_overrun_post_alter_commit"; DROP TABLE test.t1;