mustafasrepo commented on code in PR #6621:
URL: https://github.com/apache/arrow-datafusion/pull/6621#discussion_r1227550120
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datafusion/physical-expr/src/window/nth_value.rs:
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@@ -169,9 +164,35 @@ impl PartitionEvaluator for NthValueEvaluator {
Ok(())
}
- fn set_state(&mut self, state: &BuiltinWindowState) -> Result<()> {
- if let BuiltinWindowState::NthValue(nth_value_state) = state {
- self.state = nth_value_state.clone()
+ /// When the window frame has a fixed beginning (e.g UNBOUNDED
+ /// PRECEDING), some functions such as FIRST_VALUE, LAST_VALUE and
Review Comment:
Thanks for the tip
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