Struct InstantManipulate

pub struct InstantManipulate {
    start: Millisecond,
    end: Millisecond,
    lookback_delta: Millisecond,
    interval: Millisecond,
    time_index_column: String,
    field_column: Option<String>,
    input: LogicalPlan,
}

Manipulate the input record batch to make it suitable for Instant Operator.

This plan will try to align the input time series, for every timestamp between start and end with step interval. Find in the lookback range if data is missing at the given timestamp.

Fields

start: Millisecond

end: Millisecond

lookback_delta: Millisecond

interval: Millisecond

time_index_column: String

field_column: Option<String>

A optional column for validating staleness

input: LogicalPlan

Implementations

impl InstantManipulate

pub fn new( start: Millisecond, end: Millisecond, lookback_delta: Millisecond, interval: Millisecond, time_index_column: String, field_column: Option<String>, input: LogicalPlan, ) -> Self

pub const fn name() -> &'static str

pub fn to_execution_plan( &self, exec_input: Arc<dyn ExecutionPlan>, ) -> Arc<dyn ExecutionPlan>

pub fn serialize(&self) -> Vec<u8>

pub fn deserialize(bytes: &[u8]) -> Result<Self>

Trait Implementations

impl Debug for InstantManipulate

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

Formats the value using the given formatter.

impl Hash for InstantManipulate

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 InstantManipulate

fn eq(&self, other: &InstantManipulate) -> 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 InstantManipulate

fn partial_cmp(&self, other: &InstantManipulate) -> 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 UserDefinedLogicalNodeCore for InstantManipulate

fn name(&self) -> &str

Return the plan’s name.

fn inputs(&self) -> Vec<&LogicalPlan>

Return the logical plan’s inputs.

fn schema(&self) -> &DFSchemaRef

Return the output schema of this logical plan node.

fn expressions(&self) -> Vec<Expr>

Returns all expressions in the current logical plan node. This should not include expressions of any inputs (aka non-recursively). These expressions are used for optimizer passes and rewrites.

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

Write a single line, human readable string to f for use in explain plan.

fn with_exprs_and_inputs( &self, _exprs: Vec<Expr>, inputs: Vec<LogicalPlan>, ) -> DataFusionResult<Self>

Create a new UserDefinedLogicalNode with the specified children and expressions. This function is used during optimization when the plan is being rewritten and a new instance of the UserDefinedLogicalNode must be created.

fn prevent_predicate_push_down_columns(&self) -> HashSet<String>

A list of output columns (e.g. the names of columns in self.schema()) for which predicates can not be pushed below this node without changing the output.

fn from_template(&self, exprs: &[Expr], inputs: &[LogicalPlan]) -> Self

👎Deprecated since 39.0.0: use with_exprs_and_inputs instead

fn necessary_children_exprs( &self, _output_columns: &[usize], ) -> Option<Vec<Vec<usize>>>

Returns the necessary input columns for this node required to compute the columns in the output schema

fn supports_limit_pushdown(&self) -> bool

Returns true if a limit can be safely pushed down through this UserDefinedLogicalNode node.

impl Eq for InstantManipulate

impl StructuralPartialEq for InstantManipulate