Struct ParameterState 

pub struct ParameterState {
    pub columns: Vec<String>,
    /* private fields */
}

Shared state between ApplyOperator and ParameterScanOperator.

The Apply operator writes the current outer row values here before executing the inner plan. The ParameterScan reads them as its output.

Fields

columns: Vec<String>

Column names for the injected parameters.

Implementations

impl ParameterState

pub fn new(columns: Vec<String>) -> Self

Creates a new parameter state for the given column names.

pub fn set_values(&self, values: Vec<Value>)

Sets the current parameter values (called by the Apply operator).

pub fn clear(&self)

Clears the current parameter values.

Trait Implementations

impl Debug for ParameterState

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

Formats the value using the given formatter.