jcsherin commented on code in PR #13201:
URL: https://github.com/apache/datafusion/pull/13201#discussion_r1829223868
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datafusion/expr/src/expr.rs:
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@@ -783,9 +764,11 @@ impl From<Arc<WindowUDF>> for WindowFunctionDefinition {
/// ```
/// # use datafusion_expr::{Expr, BuiltInWindowFunction, col, ExprFunctionExt};
/// # use datafusion_expr::expr::WindowFunction;
-/// // Create FIRST_VALUE(a) OVER (PARTITION BY b ORDER BY c)
+/// use datafusion_expr::test::function_stub::count_udaf;
+/// use datafusion_expr::WindowFunctionDefinition::{AggregateUDF};
+/// // Create COUNT(a) OVER (PARTITION BY b ORDER BY c)
/// let expr = Expr::WindowFunction(
-/// WindowFunction::new(BuiltInWindowFunction::FirstValue, vec![col("a")])
+/// WindowFunction::new(AggregateUDF(count_udaf()), vec![col("a")])
Review Comment:
The equivalent here is `first_value_udwf()`.
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