Add support for `time-rs` crate.

[avhz]

Description

I would like to be able to create date columns from the time-rs crate (in addition to the currently supported chrono input).

Is this something that would be possible? I could also try to do it myself if no one is keen enough to do it.

[BGR360]

Can you please show an example of the code you would like to be able to write?

[avhz]

For example, something like the example in the Polars docs here:

use chrono::prelude::*;

let date = polars::time::date_range(
    "date",
    NaiveDate::from_ymd_opt(2022, 1, 1)
        .unwrap()
        .and_hms_opt(0, 0, 0)
        .unwrap(),
    NaiveDate::from_ymd_opt(2022, 1, 5)
        .unwrap()
        .and_hms_opt(0, 0, 0)
        .unwrap(),
    Duration::parse("1d"),
    ClosedWindow::Both,
    TimeUnit::Milliseconds,
    None,
)?
.cast(&DataType::Date)?;

let datetime = polars::time::date_range(
    "datetime",
    NaiveDate::from_ymd_opt(2022, 1, 1)
        .unwrap()
        .and_hms_opt(0, 0, 0)
        .unwrap(),
    NaiveDate::from_ymd_opt(2022, 1, 5)
        .unwrap()
        .and_hms_opt(0, 0, 0)
        .unwrap(),
    Duration::parse("1d"),
    ClosedWindow::Both,
    TimeUnit::Milliseconds,
    None,
)?;

let df = df! (
    "date" => date,
    "datetime" => datetime,
)?;

But replace chrono's NaiveDate with time's PrimitiveDatetime, for example.

[avhz]

Any thoughts on this ?

[avhz]

To be more precise, I would like to do something like:

use time::macros::{date, datetime};

let df: DataFrame = df!(
    "date" => &[
        date!(2020-01-01), 
        date!(2021-01-01), 
        date!(2022-01-01)
    ],
    "datetime" => &[
        datetime!(2020-01-01 0:00), 
        datetime!(2021-01-01 0:00), 
        datetime!(2022-01-01 0:00)
    ],
)
.unwrap();

println!("{}", df);