Enum WindowFuncKind 

pub enum WindowFuncKind {
    RowNumber,
    Rank,
    DenseRank,
    Lag,
    Lead,
    Sum,
    Count,
    Avg,
    Min,
    Max,
}

Kinds of window function supported by linq!(window ...).

Ranking functions (RowNumber, Rank, DenseRank) take no column argument; aggregate functions (Sum, Count, …) and offset functions (Lag, Lead) take a single column argument.

Variants

RowNumber

Rank

DenseRank

Lag

Lead

Sum

Count

Avg

Min

Max

Implementations

impl WindowFuncKind

pub fn sql_name(&self) -> &'static str

Returns the SQL keyword for this window function.

pub fn from_name(name: &str) -> Option<Self>

Parses a window function name (case-insensitive).

pub fn takes_column(&self) -> bool

Whether this function takes a column argument.

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 Copy for WindowFuncKind

impl Debug for WindowFuncKind

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

Formats the value using the given formatter.

impl Eq for WindowFuncKind

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 StructuralPartialEq for WindowFuncKind