#!/usr/bin/env cargo

---cargo
[dependencies]
tokio = { version = "1", features = ["rt", "macros"] }
tokio-postgres = { git = "https://github.com/mshauneu/rust-postgres.git", features = ["with-chrono-0_4"] }
chrono = { version = "0.4", default-features = false }
---

#[tokio::main(flavor = "current_thread")]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let (client, connection) =
        tokio_postgres::connect("host=localhost port=5433 user=postgres", tokio_postgres::NoTls).await?;

    tokio::spawn(async move {
        if let Err(e) = connection.await {
            eprintln!("connection error: {}", e);
        }
    });

    let rows = client
    .query("SELECT INTERVAL '1 day'", &[])
    .await?;

    let value: chrono::TimeDelta = rows[0].get(0);
    assert_eq!(value, chrono::TimeDelta::days(1));

    Ok(())
}