Updating a user's name partially is simple with the repository save method:
await this.repository.save({ id: 1, name: 'john' });
However, when attempting to do the same using queryrunner, all fields must exist which throws an error stating
missing following properties from type 'User'await queryRunner.manager.save({ id: 1, name: 'john' }); // Error: Missing property
It appears that the operation involving save will likely be converted to an insert. You may want to verify the SQL that was executed. Additionally, you could attempt the following code snippet:
await queryRunner.manager.update(User, 1, { name: "john" });
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