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# MDEV-7150 Wrong auto increment values on INSERT .. ON DUPLICATE KEY UPDATE when the inserted columns include NULL in an auto-increment column
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create table t1 (a int(10) auto_increment primary key, b int(11));
insert t1 values (null,1);
insert t1 values (null,2), (1,-1), (null,3) on duplicate key update b=values(b);
select * from t1;
drop table t1;
