Function product

dialect/sql/sqlgraph/graph.go:2067–2075

cartesian product of 2 id sets.

(a, b []driver.Value)

// cartesian product of 2 id sets.
func product(a, b []driver.Value) [][2]driver.Value {
	c := make([][2]driver.Value, 0, len(a)*len(b))
	for i := range a {
		for j := range b {
			c = append(c, [2]driver.Value{a[i], b[j]})
		}
	}
	return c
}