_go.sql.query.partial

package main

import (
  "database/sql"
  "fmt"

  _ "github.com/lib/pq"
)

const (
  host     = "localhost"
  port     = 8812
  user     = "admin"
  password = "quest"
  dbname   = "qdb"
)

func main() {
  connStr := fmt.Sprintf(
    "host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
    host, port, user, password, dbname)
  db, err := sql.Open("postgres", connStr)
  checkErr(err)
  defer db.Close()

  stmt, err := db.Prepare("SELECT x FROM long_sequence(5);")
  checkErr(err)
  defer stmt.Close()

  rows, err := stmt.Query()
  checkErr(err)
  defer rows.Close()

  var num string
  for rows.Next() {
    err = rows.Scan(&num)
    checkErr(err)
    fmt.Println(num)
  }

  err = rows.Err()
  checkErr(err)
}

func checkErr(err error) {
  if err != nil {
    panic(err)
  }
}