calc_func_dependencies_for_project

datafusion_expr::logical_plan::plan

Function calc_func_dependencies_for_project 

Source 
fn calc_func_dependencies_for_project(
    exprs: &[Expr],
    input: &LogicalPlan,
) -> Result<FunctionalDependencies>
Expand description

This function projects functional dependencies of the input plan according to projection expressions exprs.