package datastore import ( "strconv" "github.com/russross/meddler" ) // rebind is a helper function that changes the sql // bind type from ? to $ for postgres queries. func rebind(query string) string { if meddler.Default != meddler.PostgreSQL { return query } qb := []byte(query) // Add space enough for 5 params before we have to allocate rqb := make([]byte, 0, len(qb)+5) j := 1 for _, b := range qb { switch b { case '?': rqb = append(rqb, '$') for _, b := range strconv.Itoa(j) { rqb = append(rqb, byte(b)) } j++ case '`': rqb = append(rqb, ' ') default: rqb = append(rqb, b) } } return string(rqb) }