Method sql_grouping_sets_to_expr

datafusion/sql/src/expr/grouping_set.rs:25–40

(
        &self,
        exprs: Vec<Vec<SQLExpr>>,
        schema: &DFSchema,
        planner_context: &mut PlannerContext,
    )

impl<S: ContextProvider> SqlToRel<'_, S> {
    pub(super) fn sql_grouping_sets_to_expr(
        &self,
        exprs: Vec<Vec<SQLExpr>>,
        schema: &DFSchema,
        planner_context: &mut PlannerContext,
    ) -> Result<Expr> {
        let args: Result<Vec<Vec<_>>> = exprs
            .into_iter()
            .map(|v| {
                v.into_iter()
                    .map(|e| self.sql_expr_to_logical_expr(e, schema, planner_context))
                    .collect()
            })
            .collect();
        Ok(Expr::GroupingSet(GroupingSet::GroupingSets(args?)))
    }

    pub(super) fn sql_rollup_to_expr(
        &self,