Enum RelationalExpr 

pub enum RelationalExpr {
    Equality {
        left: ValueExpr,
        op: EqualityOp,
        right: ValueExpr,
    },
    Comparison {
        left: ValueExpr,
        op: ComparisonOp,
        right: ValueExpr,
    },
    Like {
        expr: ValueExpr,
        pattern: String,
        escape: Option<String>,
        negated: bool,
    },
    Between {
        expr: ValueExpr,
        lower: ValueExpr,
        upper: ValueExpr,
        negated: bool,
    },
    In {
        expr: ValueExpr,
        values: Vec<ValueLiteral>,
        negated: bool,
    },
    IsNull {
        expr: ValueExpr,
        negated: bool,
    },
}

Relational expressions - produce boolean results from value comparisons

Variants

Equality

Equality comparison: =, <>, !=

Fields

left: ValueExpr

op: EqualityOp

right: ValueExpr

Comparison

Simple comparison: >, >=, <, <=

Fields

left: ValueExpr

op: ComparisonOp

right: ValueExpr

Like

LIKE pattern matching

Fields

expr: ValueExpr

pattern: String

escape: Option<String>

negated: bool

Between

BETWEEN range check

Fields

expr: ValueExpr

lower: ValueExpr

upper: ValueExpr

negated: bool

In

IN list membership

Fields

expr: ValueExpr

values: Vec<ValueLiteral>

negated: bool

IsNull

IS NULL / IS NOT NULL

Fields

expr: ValueExpr

negated: bool

Trait Implementations

impl Clone for RelationalExpr

fn clone(&self) -> RelationalExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RelationalExpr

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

Formats the value using the given formatter.

impl Display for RelationalExpr

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

Formats the value using the given formatter.

impl PartialEq for RelationalExpr

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