sql包中的Query和QueryRow之间是否有明显的性能差异？

Is there any significant performance difference between the

func (db *DB) Query(query string, args ...interface{}) (*Rows, error)

and the

func (db *DB) QueryRow(query string, args ...interface{}) *Row

in the "database/sql" package even if you have LIMIT 1; at the end of your query?

The difference is the overhead of a function call (i.e., almost nothing, compared to sending a query to your database). QueryRow calls Query, and then wraps the results in an sql.Row.