Go postgres connect to database

main.go

import "fmt"
import "os"
import "log"
import (
  "database/sql"

  _ "github.com/lib/pq"
)

func main() {
  connStr := "user=postgres password=changeme dbname=database sslmode=disable"
  db, err := sql.Open("postgres", connStr)

  if err != nil {
    log.Fatal(err)
  }

  rows, err := db.Query("SELECT NOW()")

  if err != nil{
      fmt.Println("pq error:", err)
      os.Exit(1)
  }
  _ = rows

  fmt.Println("Connect OK")
  os.Exit(0)
}