Struct QueryExpression 

pub struct QueryExpression {
    pub expr: String,
    pub params: Vec<String>,
}

Annex B — QueryCriterion expression.

Fields

expr: String

SQL-92 subset expression (e.g. "price > 100 AND symbol = 'AAPL'").

params: Vec<String>

Bind parameters.

Implementations

impl QueryExpression

pub fn new(expr: impl Into<String>) -> Self

Constructor.

pub fn add_param(&mut self, p: impl Into<String>)

Adds a bind parameter.

Trait Implementations

impl Clone for QueryExpression

fn clone(&self) -> QueryExpression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryExpression

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

Formats the value using the given formatter.

impl Eq for QueryExpression

impl PartialEq for QueryExpression

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