When the database being connected does not exist, the error codes and error messages differ from those defined by MySQL 8.

[x86cloud]

Number: 1102
Message: Unknown database '%s'

```Mysql's Server Error Message Reference
 Error number: 1102; Symbol: ER_WRONG_DB_NAME; SQLSTATE: 42000
 Message: Incorrect database name '%s

[nicecui]

Could you please explain more about this problem? for example, how to reproduce it?

[x86cloud]

Could you please explain more about this problem? for example, how to reproduce it?

import (
	"database/sql"
	"errors"
	"fmt"

	mysql2 "github.com/go-sql-driver/mysql"
)

func PingDatabase() error {
	db, err := sql.Open("mysql", "tcp(localhost:4002)/database")
	if err != nil {
		return err
	}
	err = db.Ping()
	var mySQLError *mysql2.MySQLError
	if err != nil && errors.As(err, &mySQLError) {
		panic(err)
	}

	return nil
}

mysql error message: https://downloads.mysql.com/docs/mysql-errors-9.3-en.pdf

[fengjiachun]

Thanks for the thorough report! While MySQL compatibility is important to us, we're mainly focusing on making sure queries work correctly rather
than matching every error code exactly. The current error still tells clients what went wrong clearly enough. We'll keep this in mind for the
future, but it's not high on our priority list right now.