cloud-fan commented on a change in pull request #28318:
URL: https://github.com/apache/spark/pull/28318#discussion_r414533758
##########
File path: sql/core/src/test/resources/sql-tests/inputs/cte-nested.sql
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@@ -103,3 +103,11 @@ SELECT (
SELECT * FROM t
)
);
+
+-- CTE in subquery expression shadows outer 4
Review comment:
This comment is correct about `subquery expression` but many comments in
this file are not correct.
For example, the following query doesn't have subquery expression
```
-- CTE in subquery expression shadows outer
WITH t AS (SELECT 1)
SELECT (
WITH t AS (SELECT 2)
SELECT * FROM t
);
```
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