Struct PreparedStatement 

pub struct PreparedStatement {
    pub query: String,
    pub bound_statement: BoundStatement,
    pub logical_plan: Option<Vec<LogicalOperator>>,
    pub parameters: Vec<String>,
}

A prepared statement with a cached bound statement and logical plan.

Fields

query: String

The original query string.

bound_statement: BoundStatement

The bound statement after semantic analysis.

logical_plan: Option<Vec<LogicalOperator>>

The logical plan (cached after first optimization).

parameters: Vec<String>

Parameter names and their resolved types (None = unknown).

Implementations

impl PreparedStatement

pub fn new(query: String, bound_statement: BoundStatement) -> Self

pub fn parameter_names(&self) -> &[String]

Get the expected parameter names.

pub fn num_parameters(&self) -> usize

Number of expected parameters.

Trait Implementations

impl Clone for PreparedStatement

fn clone(&self) -> PreparedStatement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PreparedStatement

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

Formats the value using the given formatter.