netstat -n|grep -i postmaster
tcp 0 0 127.0.0.1:5432 0.0.0.0:* LISTEN 2414/postmaster
psql -h 127.0.0.1 -p 5432
rows, err := db.Queryx("SELECT * FROM place")
for rows.Next() {
results := make(map[string]interface{})
err = rows.MapScan(results)
}