Function read_memory_macro

datafusion-examples/examples/dataframe/dataframe.rs:182–196

Use the DataFrame API to: 1. Read in-memory data.

()

/// Use the DataFrame API to:
/// 1. Read in-memory data.
async fn read_memory_macro() -> Result<()> {
    // create a DataFrame using macro
    let df = dataframe!(
        "a" => ["a", "b", "c", "d"],
        "b" => [1, 10, 10, 100]
    )?;
    // print the results
    df.show().await?;

    // create empty DataFrame using macro
    let df_empty = dataframe!()?;
    df_empty.show().await?;

    Ok(())
}

/// Use the DataFrame API to:
/// 1. Write out a DataFrame to a table