README.md

df_extras

A collection of user defined functions, from your favourite databases, in DataFusion.

Road to 0.0.1

Postgres	Details
Networking	✅︎ Done
Maths	🚧︎ Ongoing
JSON	⭘ Not Started
Sqlite	Details
JSON	🚧︎ Ongoing
Built-In Scalar	⭘ Not Started
Maths	⭘ Not Started

How to use

Since df_extras is not published to crates.io yet, directly specify the git repository link as a dependency.

[dependencies]
datafusion = "33.0.0"
df_extras = { features = ["postgres"], git = "https://github.com/dadepo/df_extras" }
tokio = "1.34.0"

Then in code:

use datafusion::prelude::SessionContext;
use df_extras::postgres::register_postgres_udfs;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let ctx = SessionContext::new();

    register_postgres_udfs(&ctx)?;

    let df = ctx
        .sql("select inet_merge('192.168.1.5/24', '192.168.2.5/24') as result")
        .await?;

    df.show().await?;

    Ok(())
}

The above will print out

+----------------+
| result         |
+----------------+
| 192.168.0.0/22 |
+----------------+