Struct CountFunc 

pub struct CountFunc {
    pub this: Option<Expression>,
    pub star: bool,
    pub distinct: bool,
    pub filter: Option<Expression>,
    pub ignore_nulls: Option<bool>,
    pub original_name: Option<String>,
}

COUNT function with optional star

Fields

this: Option<Expression>

star: bool

distinct: bool

filter: Option<Expression>

ignore_nulls: Option<bool>

IGNORE NULLS (true) or RESPECT NULLS (false)

original_name: Option<String>

Original function name for case preservation (e.g., “count” or “COUNT”)

Trait Implementations

impl Clone for CountFunc

fn clone(&self) -> CountFunc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CountFunc

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CountFunc

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for CountFunc

fn eq(&self, other: &CountFunc) -> 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 Serialize for CountFunc

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 CountFunc