Method schema

datafusion/core/src/dataframe/mod.rs:1660–1662

Returns the `DFSchema` describing the output of this DataFrame. The output `DFSchema` contains information on the name, data type, and nullability for each column. # Example ``` # use datafusion::prelude::*; # use datafusion::error::Result; # #[tokio::main] # async fn main() -> Result<()> { let ctx = SessionContext::new(); let df = ctx .read_csv("tests/data/example.csv", CsvReadOptions::new()) .

(&self)

    /// # }
    /// ```
    pub fn schema(&self) -> &DFSchema {
        self.plan.schema()
    }

    /// Return a reference to the unoptimized [`LogicalPlan`] that comprises
    /// this DataFrame.