Blizzara commented on code in PR #15211:
URL: https://github.com/apache/datafusion/pull/15211#discussion_r1994161768
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datafusion/substrait/src/logical_plan/consumer.rs:
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@@ -1083,18 +1086,24 @@ pub async fn from_project_rel(
// Adding the same expression here and in the project below
// works because the project's builder uses columnize_expr(..)
// to transform it into a column reference
- input = input.window(vec![e.clone()])?
+ window_exprs.insert(e.clone());
}
explicit_exprs.push(name_tracker.get_uniquely_named_expr(e)?);
}
+ let input = if !window_exprs.is_empty() {
+ LogicalPlanBuilder::window_plan(input, window_exprs)?
Review Comment:
This has logic built in to separate the expressions by their windows, so
it's kinda nice.
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