merge_grouping_set

datafusion_expr::utils

Function merge_grouping_set 

Source 
fn merge_grouping_set<T: Clone>(left: &[T], right: &[T]) -> Result<Vec<T>>
Expand description

Merge two grouping_set

§Example

(A, B), (C, D) -> (A, B, C, D)

§Error

  • DataFusionError: The number of group_expression in grouping_set exceeds the maximum limit