Empty query causes loop

By mistake stupid me executed an empty query. This resulted in an (infinite?) loop and hanged my application.

The minimal example below reproduces this. This example uses an in-memory database, but it occurs with a database file as well.

Version: v1.14.7

db, err := sql.Open("sqlite3", ":memory:")
if err != nil {
	panic(err)
}
defer db.Close()

stmt, err := db.Prepare("") // empty query
if err != nil {
	panic(err)
}
defer stmt.Close()

rows, err := stmt.Query()
if err != nil {
	panic(err)
}
defer rows.Close()

count := 0
for rows.Next() {
	var dummy string
	rows.Scan(&dummy) // this can be omitted

	log.Printf("%d: [%+v]\n", count, dummy)
	count++
}

Results in:

0: []
1: []
2: []
3: []
4: []
...

I don't know what the expected behavior should be. Maybe return an error?

Start by running the minimal Go reproduction against the reported v1.14.7 behavior and trace how the empty query is handled through statement execution and row iteration. Define the expected empty-query behavior, then add coverage showing that rows.Next does not loop indefinitely and that the result or error is consistent.