package main

import (
    "log"
    "database/sql"
    _ "github.com/lib/pq"
)

type result struct {
    id int
    name string
    date string
    isOk bool
}

func main() {
    conninfo := "host=127.0.0.1 port=5432 user=tom password=pencil dbname=localdb"
    db, err := sql.Open("postgres", conninfo)
    if err != nil {
        log.Fatal(err)
    }
    defer db.Close()

    _, err = db.Exec("INSERT INTO testtable VALUES (1)")
    if err != nil {
        log.Fatal(err)
    }

    rows, err := db.Query("SELECT * FROM testtable")
    if err != nil {
        log.Fatal(err)
    }

    for rows.Next() {
        var r result
        rows.Scan( & r.id, & r.name, & r.date, & r.isOk)
        log.Printf("%#v", r)
    }

    rows, err = db.Query("SELECT * FROM testtable where id = ?", 1)
    if err != nil {
        log.Fatal(err)
    }

    for rows.Next() {
        var r result
        rows.Scan( & r.id, & r.name, & r.date, & r.isOk)
        log.Printf("%#v", r)
    }
}