alamb commented on a change in pull request #334:
URL: https://github.com/apache/arrow-datafusion/pull/334#discussion_r632720978
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File path: datafusion/src/logical_plan/builder.rs
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@@ -289,6 +289,14 @@ impl LogicalPlanBuilder {
}))
}
+ pub fn window(
+ &self,
+ group_expr: impl IntoIterator<Item = Expr>,
+ aggr_expr: impl IntoIterator<Item = Expr>,
Review comment:
would eventually need sort_exprs too to handle the various window clauses
Maybe worth taking a peek at how the `sqlparser` crate structures things so
the API on the builder is "future proof" (aka we don't have to break backwards
compatibility when we add support for non empty over clause)
https://github.com/ballista-compute/sqlparser-rs/blob/35ef0eee3857c59827b2587bc813218a00dce264/src/ast/mod.rs#L372-L376
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