alterColumn = true
				}
			default:
				if dv != field.DefaultValue {
					alterColumn = true
				}
			}
		}
	}

	// check comment
	if comment, ok := columnType.Comment(); ok && comment != field.Comment {
		// not primary key
		if !field.PrimaryKey {
			alterColumn = true
		}
	}

	if alterColumn {