Retrieve Postgres TSTZRANGE to PgRange<Datetime<Utc>> with Rust sqlx - postgresql

Question

I have the following SQL table scheme
CREATE TABLE reservation (
id INTEGER PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY,
timespan TSTZRANGE
);
INSERT INTO reservation(timespan) VALUES
(TSTZRANGE(now() + INTERVAL '0 hour', now() + INTERVAL '1 hour')),
(TSTZRANGE(now() + INTERVAL '2 hour', now() + INTERVAL '3 hour'));
and using rust-sqlx, I would like to retrieve those rows directly into a struct.
/*
[dependencies]
chrono = "0.4"
tokio = { version = "1", features = ["full"] }
sqlx = { version = "0.5", features = [ "runtime-tokio-native-tls" , "postgres" ] }
*/
use chrono::prelude::*;
use sqlx::FromRow;
use sqlx::postgres::{types::PgRange, PgPoolOptions};
#[derive(Debug, FromRow)]
struct Reservation {
id: i32,
timespan: PgRange<DateTime<Utc>>,
}
#[tokio::main]
async fn main() -> Result<(), sqlx::Error> {
let db_url: String = "postgresql://postgres:postgres#localhost/mydb".to_owned();
let pool = PgPoolOptions::new()
.max_connections(2)
.connect(&db_url)
.await?;
let select_query = sqlx::query_as::<_, Reservation>("SELECT id, timespan FROM reservation");
let reservations: Vec<Reservation> = select_query.fetch_all(&pool).await?;
dbg!("{:?}", reservations);
Ok(())
}
I am getting the following 2 following errors
error[E0277]: the trait bound `PgRange<chrono::DateTime<chrono::Utc>>: Type<_>` is not satisfied
...
...
error[E0277]: the trait bound `chrono::DateTime<chrono::Utc>: Type<Postgres>` is not satisfied
How do I go about manually implementing these trait bounds? or is there a simpler way to achieve the same thing?

Answer 1

Newbie mistake! I just had to add chrono flag for sqlx in Cargo.toml
sqlx = { version = "0.5", features = [ "runtime-tokio-native-tls" , "postgres" , "chrono" ] }