Enum SourceColumnRef 

pub enum SourceColumnRef {
    File(usize),
    Partition(usize),
    MissingNull(usize),
}

Reference to the source location for a logical column.

File columns are indexed against the Parquet file schema. Partition columns are indexed against LocalParquetSource::partition_columns.

Variants

File(usize)

Physical column in the Parquet file schema.

Partition(usize)

Synthetic column from partition metadata.

MissingNull(usize)

Nullable logical column missing from the physical file schema.

Trait Implementations

impl Clone for SourceColumnRef

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SourceColumnRef

impl Debug for SourceColumnRef

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

Formats the value using the given formatter.

impl Eq for SourceColumnRef

impl Hash for SourceColumnRef

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SourceColumnRef

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SourceColumnRef