Function datafusion::logical_expr::utils::grouping_set_expr_count

source ยท 
pub fn grouping_set_expr_count(
    group_expr: &[Expr],
) -> Result<usize, DataFusionError>
Expand description

Count the number of distinct exprs in a list of group by expressions. If the first element is a GroupingSet expression then it must be the only expr.