Struct Unnest 

pub struct Unnest {
    pub input: Arc<LogicalPlan>,
    pub exec_columns: Vec<Column>,
    pub list_type_columns: Vec<(usize, ColumnUnnestList)>,
    pub struct_type_columns: Vec<usize>,
    pub dependency_indices: Vec<usize>,
    pub schema: DFSchemaRef,
    pub options: UnnestOptions,
}

Unnest a column that contains a nested list type. See UnnestOptions for more details.

Fields

input: Arc<LogicalPlan>

The incoming logical plan

exec_columns: Vec<Column>

Columns to run unnest on, can be a list of (List/Struct) columns

list_type_columns: Vec<(usize, ColumnUnnestList)>

refer to the indices(in the input schema) of columns that have type list to run unnest on

struct_type_columns: Vec<usize>

refer to the indices (in the input schema) of columns that have type struct to run unnest on

dependency_indices: Vec<usize>

Having items aligned with the output columns representing which column in the input schema each output column depends on

schema: DFSchemaRef

The output schema, containing the unnested field column.

options: UnnestOptions

Options

Implementations

impl Unnest

pub fn try_new( input: Arc<LogicalPlan>, exec_columns: Vec<Column>, options: UnnestOptions, ) -> Result<Self>

Trait Implementations

impl Clone for Unnest

fn clone(&self) -> Unnest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Unnest

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

Formats the value using the given formatter.

impl Hash for Unnest

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 Unnest

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Unnest

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Unnest

impl StructuralPartialEq for Unnest