execute UPDATE SET ? error

db.execute('update t set ? where id=?', [{a:97, b:98}, 1])

This errors ​​You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '? WHERE id = ?' at line 1​​

Works fine if i use db.query The db.format it generates looks fine

how does SET ? work? is that not supposed to be used with prepared statements?

[scull7]

It seems that this also fails:

db.execute({
  sql: 'INSERT INTO test SET ?',
  values: [ { foo: "bar", baz: "buzz" } ],
  namedParameters: false,
}, console.log)

ER_PARSE_ERROR (1064) - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ‘?’ at line 1

however, this succeeds:

db.query({
  sql: 'INSERT INTO test SET ?',
  values: [ { foo: "bar", baz: "buzz" } ],
  namedParameters: false,
}, console.log)

[scull7]

@sidorares Thank you for the explanation.