Enum ScanSource 

pub enum ScanSource {
    DataFrame(DataFrame),
    Csv {
        path: PathBuf,
        predicate: Option<Expr>,
        projection: Option<Vec<String>>,
    },
    Parquet {
        path: PathBuf,
        predicate: Option<Expr>,
        projection: Option<Vec<String>>,
    },
}

Physical plan compiler and plan node types. Source for a physical scan operator.

Variants

DataFrame(DataFrame)

In-memory scan of a DataFrame.

Csv

CSV file scan with optional predicate/projection pushdown.

Fields

path: PathBuf

predicate: Option<Expr>

projection: Option<Vec<String>>

Parquet

Parquet file scan with optional predicate/projection pushdown.

Fields

path: PathBuf

predicate: Option<Expr>

projection: Option<Vec<String>>

Trait Implementations

impl Clone for ScanSource

fn clone(&self) -> ScanSource

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScanSource

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.