2010YOUY01 commented on code in PR #15033:
URL: https://github.com/apache/datafusion/pull/15033#discussion_r1996542785
##########
datafusion/sql/src/select.rs:
##########
@@ -887,29 +888,42 @@ fn match_window_definitions(
named_windows: &[NamedWindowDefinition],
) -> Result<()> {
for proj in projection.iter_mut() {
- if let SelectItem::ExprWithAlias {
- expr: SQLExpr::Function(f),
- alias: _,
- }
- | SelectItem::UnnamedExpr(SQLExpr::Function(f)) = proj
+ if let SelectItem::ExprWithAlias { expr, alias: _ }
+ | SelectItem::UnnamedExpr(expr) = proj
{
- for NamedWindowDefinition(window_ident, window_expr) in
named_windows.iter() {
- if let Some(WindowType::NamedWindow(ident)) = &f.over {
- if ident.eq(window_ident) {
- f.over = Some(match window_expr {
- NamedWindowExpr::NamedWindow(ident) => {
- WindowType::NamedWindow(ident.clone())
- }
- NamedWindowExpr::WindowSpec(spec) => {
- WindowType::WindowSpec(spec.clone())
+ let mut err = None;
+ visit_expressions_mut(expr, |expr| {
Review Comment:
DuckDB interprets it as `(SUM(t1.v1) OVER w) + 1`, and `... OVER (w + 1)` is
not valid
```
D SELECT
t1.v1,
SUM(t1.v1) OVER (w + 1)
FROM
generate_series(1, 10) AS t1(v1)
WINDOW
w AS (ORDER BY t1.v1);
Parser Error: syntax error at or near "+"
LINE 3: SUM(t1.v1) OVER (w + 1)
```
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