Enum Postprocessing 

pub enum Postprocessing {
    UnderscoreExpr(LogicalExprNode),
    LazyframeExpr(LogicalExprNode),
}

Applied to the results of running a resolver. Currently only enabled for SQL resolvers.

Variants

UnderscoreExpr(LogicalExprNode)

Column projection to apply to the resolver outputs – result should be a struct or list that can be unpacked into a table w/ the same schema as the original sql outputs

LazyframeExpr(LogicalExprNode)

LazyFrame table operation to apply on the SQL outputs

Implementations

impl Postprocessing

pub fn encode(&self, buf: &mut impl BufMut)

Encodes the message to a buffer.

pub fn merge( field: &mut Option<Postprocessing>, tag: u32, wire_type: WireType, buf: &mut impl Buf, ctx: DecodeContext, ) -> Result<(), DecodeError>

Decodes an instance of the message from a buffer, and merges it into self.

pub fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

Trait Implementations

impl Clone for Postprocessing

fn clone(&self) -> Postprocessing

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Postprocessing

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

Formats the value using the given formatter.

impl PartialEq for Postprocessing

fn eq(&self, other: &Postprocessing) -> 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 StructuralPartialEq for Postprocessing