xinlifoobar commented on code in PR #10555:
URL: https://github.com/apache/datafusion/pull/10555#discussion_r1605709554
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datafusion/sql/src/unparser/expr.rs:
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@@ -411,9 +411,34 @@ impl Unparser<'_> {
Expr::Wildcard { qualifier: _ } => {
not_impl_err!("Unsupported Expr conversion: {expr:?}")
}
- Expr::GroupingSet(_) => {
- not_impl_err!("Unsupported Expr conversion: {expr:?}")
- }
+ Expr::GroupingSet(grouping_set) => match grouping_set {
+ GroupingSet::GroupingSets(grouping_sets) => {
+ let expr_ast_sets = grouping_sets
+ .iter()
+ .map(|set| {
+ set.iter()
+ .map(|e| self.expr_to_sql(e))
+ .collect::<Result<Vec<_>>>()
+ })
+ .collect::<Result<Vec<_>>>()?;
+
+ Ok(ast::Expr::GroupingSets(expr_ast_sets))
+ }
+ GroupingSet::Cube(cube) => {
+ let expr_ast_sets = cube
+ .iter()
+ .map(|e| vec![self.expr_to_sql(e).unwrap()])
+ .collect::<Vec<_>>();
Review Comment:
My bad... done.
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