Enum ConstraintOp 

pub enum ConstraintOp {
    Eq,
    Gt,
    Le,
    Lt,
    Ge,
    Match,
    Like,
    Glob,
    Regexp,
    Ne,
    IsNot,
    IsNotNull,
    IsNull,
    Is,
}

The comparison a constraint applies.

Match, Like, Glob and Regexp are here because an operator a module understands is the reason virtual tables exist: t MATCH 'x' means nothing to the engine and everything to FTS5.

Variants

Eq

=

Gt

>

Le

<=

Lt

<

Ge

>=

Match

MATCH

Like

LIKE

Glob

GLOB

Regexp

REGEXP

Ne

!=

IsNot

IS NOT

IsNotNull

IS NOT NULL

IsNull

IS NULL

Is

IS

Implementations

impl ConstraintOp

pub fn code(self) -> i32

Returns the number the C surface gives this operator.

pub fn has_value(self) -> bool

Returns whether the operator has a right-hand value to pass on.

IS NULL and IS NOT NULL do not, which is why they are offered to a module without an argument position ever being filled.

Trait Implementations

impl Clone for ConstraintOp

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ConstraintOp

impl Debug for ConstraintOp

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

Formats the value using the given formatter.

impl Eq for ConstraintOp

impl PartialEq for ConstraintOp

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ConstraintOp