examples/tips.py

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import argparse
import os
import ray

from datafusion_ray import DFRayContext, df_ray_runtime_env


def go(data_dir: str):
    ctx = DFRayContext()

    ctx.register_parquet("tips", os.path.join(data_dir, "tips.parquet"))

    df = ctx.sql(
        "select sex, smoker, avg(tip/total_bill) as tip_pct from tips group by sex, smoker order by sex, smoker"
    )
    df.show()


if __name__ == "__main__":
    ray.init(namespace="tips", runtime_env=df_ray_runtime_env)
    parser = argparse.ArgumentParser()
    parser.add_argument(
        "--data-dir", required=True, help="path to tips.parquet files"
    )
    args = parser.parse_args()

    go(args.data_dir)