Automatically execute ALTER TABLE MODIFY COLUMN ，But I didn't write such code

[chun222]

GORM Playground Link

#1

Description

I didn't write such business in the code：

ALTER TABLE 'mes mat main' MODIFY COLUMN 'mat code' varchar(50) NOT NULL COMMENT 'material code'

It seems to be executing automatically, resulting in locking the table
And the fields are of uniqueIndex or index unique type