Struct RowShape 

pub struct RowShape { /* private fields */ }

Describes the row crossing relational operators.

physical_columns can include private ORDER BY or DISTINCT ON keys. Only the leading public_width columns may cross the SQL result boundary.

Implementations

impl RowShape

pub fn new( physical_columns: CompactArc<Vec<String>>, public_width: usize, ) -> Result<Self>

pub fn physical_columns(&self) -> &CompactArc<Vec<String>>

pub fn physical_width(&self) -> usize

pub fn public_width(&self) -> usize

pub fn has_private_tail(&self) -> bool

pub fn project_public( &self, result: Box<dyn QueryResult>, ) -> Box<dyn QueryResult>

Trait Implementations

impl Clone for RowShape

fn clone(&self) -> RowShape

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowShape

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

Formats the value using the given formatter.

impl Eq for RowShape

impl PartialEq for RowShape

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RowShape