Struct StreamProjectSet 

pub struct StreamProjectSet {
    pub base: PlanBase<Stream>,
    core: ProjectSet<StreamPlanRef>,
    watermark_derivations: Vec<(usize, usize)>,
    nondecreasing_exprs: Vec<usize>,
}

Fields

base: PlanBase<Stream>

core: ProjectSet<StreamPlanRef>

watermark_derivations: Vec<(usize, usize)>

All the watermark derivations, (input_column_idx, expr_idx). And the derivation expression is the project_set’s expression itself.

nondecreasing_exprs: Vec<usize>

Nondecreasing expression indices. ProjectSet can produce watermarks for these expressions.

Implementations

impl StreamProjectSet

pub fn new(core: ProjectSet<PlanRef>) -> Self

Methods from Deref<Target = PlanBase<Stream>>

pub fn clone_with_new_plan_id(&self) -> Self

pub fn clone_with_new_distribution(&self, dist: Distribution) -> Self

Clone the plan node with a new distribution.

Panics if the plan node is not physical.

Trait Implementations

impl Clone for StreamProjectSet

fn clone(&self) -> StreamProjectSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamProjectSet

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

Formats the value using the given formatter.

impl Deref for StreamProjectSet

type Target = PlanBase<Stream>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Distill for StreamProjectSet

fn distill<'a>(&self) -> XmlNode<'a>

fn distill_to_string(&self) -> String

impl ExprRewritable<Stream> for StreamProjectSet

fn has_rewritable_expr(&self) -> bool

fn rewrite_exprs(&self, r: &mut dyn ExprRewriter) -> PlanRef

impl ExprVisitable for StreamProjectSet

fn visit_exprs(&self, v: &mut dyn ExprVisitor)

impl Hash for StreamProjectSet

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 StreamProjectSet

fn eq(&self, other: &StreamProjectSet) -> 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 PlanNodeMeta for StreamProjectSet

const NODE_TYPE: StreamPlanNodeType = StreamPlanNodeType::StreamProjectSet

type Convention = Stream

fn plan_base(&self) -> &PlanBase<Stream>

Get the reference to the PlanBase with corresponding convention.

impl PlanTreeNode<Stream> for StreamProjectSet

fn clone_with_inputs(&self, inputs: &[PlanRef<Stream>]) -> PlanRef<Stream>

Clone the node with a list of new inputs.

fn inputs(&self) -> SmallVec<[PlanRef<Stream>; 2]>

Get input nodes of the plan.

impl PlanTreeNodeUnary<Stream> for StreamProjectSet

fn input(&self) -> PlanRef

fn clone_with_input(&self, input: PlanRef) -> Self

fn rewrite_with_input( &self, _input: PlanRef<C>, _input_col_change: ColIndexMapping, ) -> (Self, ColIndexMapping)

where Self: Sized,

Rewrites the plan node according to the schema change of its input node during rewriting.

impl StreamNode for StreamProjectSet

fn to_stream_prost_body( &self, _state: &mut BuildFragmentGraphState, ) -> PbNodeBody

impl Eq for StreamProjectSet

impl StreamPlanNode for StreamProjectSet

impl StructuralPartialEq for StreamProjectSet