Struct ValueFunc 

pub struct ValueFunc {
    pub this: Expression,
    pub ignore_nulls: Option<bool>,
    pub order_by: Vec<Ordered>,
}

FIRST_VALUE / LAST_VALUE function

Fields

this: Expression

ignore_nulls: Option<bool>

None = not specified, Some(true) = IGNORE NULLS, Some(false) = RESPECT NULLS

order_by: Vec<Ordered>

ORDER BY inside the function parens (e.g., DuckDB: LAST_VALUE(x ORDER BY x))

Trait Implementations

impl Clone for ValueFunc

fn clone(&self) -> ValueFunc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValueFunc

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ValueFunc

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ValueFunc

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

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 ValueFunc