[GitHub] [spark] beliefer commented on a change in pull request #30512: [SPARK-28645][SQL] ParseException is thrown when the window is redefined

[GitBox <gi...@apache.org>]

beliefer commented on a change in pull request #30512:
URL: https://github.com/apache/spark/pull/30512#discussion_r531462006



##########
File path: sql/core/src/test/resources/sql-tests/inputs/window.sql
##########
@@ -250,4 +250,16 @@ WINDOW w AS (
   ORDER BY salary DESC
   RANGE BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
 )
-ORDER BY department;
\ No newline at end of file
+ORDER BY department;
+
+SELECT
+    employee_name,
+    salary,
+    first_value(employee_name) OVER w highest_salary,
+    nth_value(employee_name, 2) OVER w second_highest_salary
+FROM
+    basic_pays
+WINDOW
+    w AS (ORDER BY salary DESC ROWS BETWEEN UNBOUNDED PRECEDING AND 1 FOLLOWING),

Review comment:
       I checked the PgSQL and find the alias of window frame is case insensitive.
   




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