Function convert_group_by

nodedb-sql/src/planner/aggregate.rs:259–264

Convert GROUP BY clause to SqlExpr list.

(group_by: &GroupByExpr)

/// Convert GROUP BY clause to SqlExpr list.
pub fn convert_group_by(group_by: &GroupByExpr) -> Result<Vec<SqlExpr>> {
    match group_by {
        GroupByExpr::All(_) => Ok(Vec::new()),
        GroupByExpr::Expressions(exprs, _) => exprs.iter().map(convert_expr).collect(),
    }
}

/// Scan the SELECT projection for `GROUPING(col)` calls and return synthetic
/// `AggregateExpr` entries so the executor can compute the per-set bitmask value.