Function round_trip_dataframe

datafusion/core/tests/expr_api/parse_sql_expr.rs:75–88

(sql: &str)

}

async fn round_trip_dataframe(sql: &str) -> Result<()> {
    let ctx = SessionContext::new();
    let df = ctx
        .read_csv(
            &"tests/data/example.csv".to_string(),
            CsvReadOptions::default(),
        )
        .await?;
    let expr = df.parse_sql_expr(sql)?;
    let sql2 = unparse_sql_expr(&expr)?;
    assert_eq!(sql, sql2);

    Ok(())
}

#[tokio::test]
async fn roundtrip_qualified_schema() -> Result<()> {