Gorm Migration exception - Nineya|java/go/python

import (
        "gorm.io/driver/mysql"
    "gorm.io/gorm"
)

type XnAddress struct {
    ID int64 `gorm:"primaryKey;column:id;type:int;not null;comment:'id'" json:"-"` // id      
    Address         string  `gorm:"column:address;type:varchar(50);default:null;" json:"address"` 
}

func (m *XnAddress) TableName() string {
    return "xn_address"
}

type Chat struct {
    ID        uint `gorm:"primarykey"`
    CreatedAt time.Time
    UpdatedAt time.Time
    UId int64 `gorm:"column:u_id"`
    IsSystem int64
    Content string `gorm:"type:text"`
    Read      int       `gorm:"default:0"`
    XnAddress    XnAddress `gorm:"foreignkey:UId;AssociationForeignKey:ID;save_associations:false"`
}


Db.AutoMigrate(&XnAddress{})
Db.AutoMigrate(&Chat{})

output SQL:

ALTER TABLE `xn_address` MODIFY COLUMN `address` bigint DEFAULT null

I have defined the field address as a string type, and the migration table chat will change the address type Why change the type of Address? How to fix it?

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Comment From: github-actions[bot]