Dopo aver sapere quali funzioni sono disponibili
, è ragionevolmente diretto vedere che devi usare with-chrono-0_4
caratteristica.
use chrono::{DateTime, Utc}; // 0.4.10
use postgres::{Client, Error, NoTls}; // 0.17.0, features = ["with-chrono-0_4"]
pub fn main() -> Result<(), Error> {
let mut client = Client::connect("host=localhost user=stack-overflow", NoTls)?;
client.simple_query(
r#"
CREATE TABLE mytable (
name text NOT NULL,
timestamp timestamptz NOT NULL
)"#,
)?;
client.execute("INSERT INTO mytable VALUES ('bob', now());", &[])?;
for row in client.query("SELECT * FROM mytable", &[])? {
let name: &str = row.get(0);
let timestamp: DateTime<Utc> = row.get(1);
dbg!(name, timestamp);
}
Ok(())
}
[src/main.rs:20] name = "bob"
[src/main.rs:20] timestamp = 2020-01-16T01:21:58.755804Z