Struct datafusion_expr::conditional_expressions::CaseBuilder

pub struct CaseBuilder { /* private fields */ }

Helper struct for building Expr::Case

Implementations

impl CaseBuilder

pub fn new( expr: Option<Box<Expr>>, when_expr: Vec<Expr>, then_expr: Vec<Expr>, else_expr: Option<Box<Expr>> ) -> Self

pub fn when(&mut self, when: Expr, then: Expr) -> CaseBuilder

pub fn otherwise(&mut self, else_expr: Expr) -> Result<Expr>

pub fn end(&self) -> Result<Expr>