Struct datafusion_python::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>>, ) -> CaseBuilder

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

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

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

Trait Implementations

impl From<CaseBuilder> for PyCaseBuilder

fn from(case_builder: CaseBuilder) -> PyCaseBuilder

Converts to this type from the input type.

impl From<PyCaseBuilder> for CaseBuilder

fn from(case_builder: PyCaseBuilder) -> Self

Converts to this type from the input type.