Enum RowsPerMatch 

pub enum RowsPerMatch {
    OneRow,
    AllRows(Option<EmptyMatchesMode>),
}

The ONE ROW PER MATCH / ALL ROWS PER MATCH output cardinality.

A tag enum (no spanned children) — AllRows carries the optional empty-match mode that only the ALL ROWS form admits.

Variants

OneRow

ONE ROW PER MATCH — one summary row per match.

AllRows(Option<EmptyMatchesMode>)

ALL ROWS PER MATCH [ SHOW EMPTY MATCHES | OMIT EMPTY MATCHES | WITH UNMATCHED ROWS ] — one row per matched (and optionally unmatched) input row.

Trait Implementations

impl Clone for RowsPerMatch

fn clone(&self) -> RowsPerMatch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RowsPerMatch

impl Debug for RowsPerMatch

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RowsPerMatch

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for RowsPerMatch

impl Hash for RowsPerMatch

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for RowsPerMatch

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

Equality operator ==.

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

Inequality operator !=.

impl Render for RowsPerMatch

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

Return the render for this value.

fn operand_binding_power(&self) -> Option<BindingPower>

The binding power this node contributes when it appears as an operand, or None (the default) for a self-delimiting node — an atom, call, or constructor — that never needs parentheses.

impl Serialize for RowsPerMatch

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for RowsPerMatch