jayzhan211 commented on code in PR #10091:
URL:
https://github.com/apache/arrow-datafusion/pull/10091#discussion_r1566568252
##########
datafusion/functions-aggregate/src/first_last.rs:
##########
@@ -99,19 +130,37 @@ impl AggregateUDFImpl for FirstValue {
let mut all_sort_orders = vec![];
// Construct PhysicalSortExpr objects from Expr objects:
+ // TODO: Reuse `create_physical_sort_expr`
let mut sort_exprs = vec![];
for expr in acc_args.sort_exprs {
- if let Expr::Sort(sort) = expr {
- if let Expr::Column(col) = sort.expr.as_ref() {
+ if let Expr::Sort(Sort {
+ expr,
+ asc,
+ nulls_first,
+ }) = expr
+ {
+ if let Expr::Column(col) = expr.as_ref() {
let name = &col.name;
let e = expressions::column::col(name, acc_args.schema)?;
sort_exprs.push(PhysicalSortExpr {
expr: e,
options: SortOptions {
- descending: !sort.asc,
- nulls_first: sort.nulls_first,
+ descending: !asc,
+ nulls_first: *nulls_first,
},
});
+ } else if let Expr::Alias(alias) = expr.as_ref() {
Review Comment:
Filed #10074 to see how to arrange the code here, replace with
`create_physical_sort_expr` or others
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