Enum WindowFuncKind 

pub enum WindowFuncKind {
    RowNumber,
    Rank,
    DenseRank,
    Lag,
    Lead,
    Aggregate(AggType),
}

Kind of window functions.

Variants

RowNumber

Rank

DenseRank

Lag

Lead

Aggregate(AggType)

Implementations

impl WindowFuncKind

pub fn is_row_number(&self) -> bool

Returns true if this is a WindowFuncKind::RowNumber, otherwise false

pub fn is_rank(&self) -> bool

Returns true if this is a WindowFuncKind::Rank, otherwise false

pub fn is_dense_rank(&self) -> bool

Returns true if this is a WindowFuncKind::DenseRank, otherwise false

pub fn is_lag(&self) -> bool

Returns true if this is a WindowFuncKind::Lag, otherwise false

pub fn is_lead(&self) -> bool

Returns true if this is a WindowFuncKind::Lead, otherwise false

pub fn is_aggregate(&self) -> bool

Returns true if this is a WindowFuncKind::Aggregate, otherwise false

pub fn as_aggregate_mut(&mut self) -> Option<&mut AggType>

Optionally returns mutable references to the inner fields if this is a WindowFuncKind::Aggregate, otherwise None

pub fn as_aggregate(&self) -> Option<&AggType>

Optionally returns references to the inner fields if this is a WindowFuncKind::Aggregate, otherwise None

pub fn into_aggregate(self) -> Result<AggType, Self>

Returns the inner fields if this is a WindowFuncKind::Aggregate, otherwise returns back the enum in the Err case of the result

impl WindowFuncKind

pub fn from_protobuf(window_function_type: &PbType) -> Result<Self>

impl WindowFuncKind

pub fn is_numbering(&self) -> bool

Trait Implementations

impl Clone for WindowFuncKind

fn clone(&self) -> WindowFuncKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WindowFuncKind

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

Formats the value using the given formatter.

impl Display for WindowFuncKind

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

Formats the value using the given formatter.

impl FromStr for WindowFuncKind

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for WindowFuncKind

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 WindowFuncKind

fn eq(&self, other: &WindowFuncKind) -> 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 Eq for WindowFuncKind

impl StructuralPartialEq for WindowFuncKind