Function datafusion::physical_expr::expressions::case

pub fn case(
    expr: Option<Arc<dyn PhysicalExpr, Global>>,
    when_thens: Vec<(Arc<dyn PhysicalExpr, Global>, Arc<dyn PhysicalExpr, Global>), Global>,
    else_expr: Option<Arc<dyn PhysicalExpr, Global>>
) -> Result<Arc<dyn PhysicalExpr, Global>, DataFusionError>

Create a CASE expression