alamb commented on code in PR #12951:
URL: https://github.com/apache/datafusion/pull/12951#discussion_r1803227352
##########
datafusion/sqllogictest/test_files/metadata.slt:
##########
@@ -125,5 +125,21 @@ NULL NULL l_bar
+query P rowsort
+SELECT ts
+FROM ((
+ SELECT now() AS ts
+ FROM table_with_metadata
+) UNION ALL (
+ SELECT ts
+ FROM table_with_metadata
+))
+GROUP BY ts
+ORDER BY ts
+LIMIT 1;
Review Comment:
I verified that without the code in this PR, this test fails like this:
```
External error: query failed: DataFusion error: Schema error: No field named
ts. Valid fields are table_with_metadata.id, table_with_metadata.name,
table_with_metadata.l_name.
[SQL] SELECT ts
FROM ((
SELECT now() AS ts
FROM table_with_metadata
) UNION ALL (
SELECT ts
FROM table_with_metadata
))
GROUP BY ts
ORDER BY ts
LIMIT 1;
at test_files/metadata.slt:128
```
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