Struct WindowStatement 

pub struct WindowStatement {
    pub partition_by: Vec<SimpleExpr>,
    pub order_by: Vec<OrderExpr>,
    pub frame: Option<FrameClause>,
}

Available on native and crate feature database only.

Window specification for window functions.

Defines a complete window specification including:

• PARTITION BY clause
• ORDER BY clause
• Frame clause (optional)

Examples

use reinhardt_query::{
    types::{WindowStatement, FrameClause, FrameType, Frame, OrderExpr, Order},
    expr::Expr,
};

// PARTITION BY department_id ORDER BY salary DESC
let window = WindowStatement {
    partition_by: vec![Expr::col("department_id").into_simple_expr()],
    order_by: vec![],
    frame: None,
};

Fields

partition_by: Vec<SimpleExpr>

PARTITION BY expressions.

order_by: Vec<OrderExpr>

ORDER BY expressions.

frame: Option<FrameClause>

Optional frame clause.

Implementations

impl WindowStatement

pub fn new() -> WindowStatement

Creates a new empty window specification.

Trait Implementations

impl Clone for WindowStatement

fn clone(&self) -> WindowStatement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WindowStatement

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

Formats the value using the given formatter.

impl Default for WindowStatement

fn default() -> WindowStatement

Returns the “default value” for a type.