Struct CaseBuilder 

pub struct CaseBuilder { /* private fields */ }

Builder for Expr::Case.

Implementations

impl CaseBuilder

pub fn when(self, condition: Expr, result: impl Into<Expr>) -> Self

Add a WHEN condition THEN result branch.

pub fn otherwise(self, fallback: impl Into<Expr>) -> Expr

Finish with an ELSE result.

pub fn end(self) -> Expr

Finish without ELSE: unmatched rows yield NULL.

Trait Implementations

impl Clone for CaseBuilder

fn clone(&self) -> CaseBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CaseBuilder

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

Formats the value using the given formatter.

impl Default for CaseBuilder

fn default() -> CaseBuilder

Returns the “default value” for a type.