// database
package main

import (
    "fmt"
    "time"
    "gopkg.in/pg.v3"
)

var user struct {
    CreatedAt time.Time
    ID        int64
    Login     string
    Password  string
    IsActive  bool
}

func main() {
    db := pg.Connect(&pg.Options{
        Host:     "127.0.0.1",
        User:     "user",
        Password: "12345",
        Database: "database",
    })

    _, er := db.Exec(`SELECT SUM(1 + 1)`)
    if er != nil {
        fmt.Print("ERROR!!!")
    }
    user.Login = "qwerty"
    user.Password = "12345"
    _, errr := db.QueryOne(user, `INSERT INTO "user" ("login", "password", "is_active", "created_at")
        VALUES (?login, ?password, ?is_active, current_timestamp)
        RETURNING id;`, user)

    if errr != nil {
        fmt.Print(errr.Error())
    }
}