Why when I query information in a table the updateDateColumn gets updated? - mysql

Question

I am making a get request to my API and I want to use the table's changeDate field to run some logic, but the problem is that when I request the data this field gets updated and that's not the behavior I expected from the #UpdateDateColumn decorator since I'm just doing a simple get query with the Repository API. Why does this happens? Did I miss something in the docs?
I know this because I gave read only permissions (mysql) to my API, when I make a request it failed because of this.
This is the error:
QueryFailedError: The MySQL server is running with the --read-only option so it cannot execute this statement
This is my entity (part of it):
export class Cake{
#PrimaryGeneratedColumn()
id: number;
#Index()
#Column()
#Generated('uuid')
GUID: string;
#Column({ nullable: true })
flavor: string;
#UpdateDateColumn({ nullable: true })
changeDate: Date;
}
This is my query:
const cake= await this.cakeRepository.findOne({where: {GUID: guid}, select: ['id', 'GUID', 'changeDate']})
SQL for table creation
CREATE TABLE `Cake` (
`id` int NOT NULL AUTO_INCREMENT,
`GUID` varchar(36) NOT NULL,
`changeDate` datetime(6) DEFAULT CURRENT_TIMESTAMP(6) ON UPDATE CURRENT_TIMESTAMP(6),
`flavor` varchar(255) NOT NULL,
PRIMARY KEY (`id`),
KEY `IDX_6aeaf4ee4a4e43e805a15c4738` (`GUID`),
) ENGINE=InnoDB AUTO_INCREMENT=362 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;