berkaysynnada commented on code in PR #14271:
URL: https://github.com/apache/datafusion/pull/14271#discussion_r1937284064
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datafusion/sqllogictest/test_files/window.slt:
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@@ -5452,3 +5452,89 @@ order by c1, c2, rank1, rank2;
statement ok
drop table t1;
+
+
+# Set-Monotonic Window Aggregate functions can output results in order
+statement ok
+CREATE EXTERNAL TABLE aggregate_test_100_ordered (
+ c1 VARCHAR NOT NULL,
+ c2 TINYINT NOT NULL,
+ c3 SMALLINT NOT NULL,
+ c4 SMALLINT,
+ c5 INT,
+ c6 BIGINT NOT NULL,
+ c7 SMALLINT NOT NULL,
+ c8 INT NOT NULL,
+ c9 INT UNSIGNED NOT NULL,
+ c10 BIGINT UNSIGNED NOT NULL,
+ c11 FLOAT NOT NULL,
+ c12 DOUBLE NOT NULL,
+ c13 VARCHAR NOT NULL
+)
+STORED AS CSV
+LOCATION '../../testing/data/csv/aggregate_test_100.csv'
+WITH ORDER (c1)
+OPTIONS ('format.has_header' 'true');
+
+statement ok
+set datafusion.optimizer.prefer_existing_sort = true;
+
+query TT
+EXPLAIN SELECT c1, SUM(c9) OVER(PARTITION BY c1) as sum_c9 FROM
aggregate_test_100_ordered ORDER BY c1, sum_c9;
Review Comment:
I've missed that🤦♂️ We need a frame `[unbounded-current row]` to test these
monotonic functions.
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