[GitHub] [doris] SWJTU-ZhangLei commented on issue #20614: [Bug] unique key table alter table modify column from varchar(100) to varchar(500) failed

["SWJTU-ZhangLei (via GitHub)" <gi...@apache.org>]

SWJTU-ZhangLei commented on issue #20614:
URL: https://github.com/apache/doris/issues/20614#issuecomment-1584047026

   > alter table xxx MODIFY COLUMN column1 varchar(500) **KEY** NULL COMMENT "xxxx"; if you alter key column, you need add **key** in sql
   > 
   > or do you want to change key column to value column? can not change key column to value column
   
   I just want to change varchar length, is there any problem in my stmt?


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