u70b3 commented on code in PR #23707:
URL: https://github.com/apache/datafusion/pull/23707#discussion_r3636439615
##########
datafusion/functions-aggregate/src/first_last.rs:
##########
@@ -1773,6 +1781,116 @@ mod tests {
Ok(())
}
+ /// Rows whose FILTER predicate evaluates to `null` must not pass the
+ /// filter, even when the underlying value bit at the null slot is `true`
+ /// (#22666).
+ #[test]
+ fn test_group_acc_filter_null_predicate() -> Result<()> {
+ let schema = Arc::new(Schema::new(vec![
+ Field::new("a", DataType::Int64, true),
+ Field::new("c", DataType::Int64, true),
+ ]));
+
+ let sort_keys = [PhysicalSortExpr {
+ expr: col("c", &schema).unwrap(),
+ options: SortOptions::default(),
+ }];
+
+ let mut group_acc = FirstLastGroupsAccumulator::try_new(
+ PrimitiveValueState::<Int64Type>::new(DataType::Int64),
+ sort_keys.into(),
+ true,
+ &[DataType::Int64],
+ true,
+ )?;
+
Review Comment:
Fixed, thanks! Added coverage using a sliced nullable BooleanArray with a
non-zero offset.
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