Jordan Hannel created CALCITE-6023:
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Summary: Possible bug found in SqlToRelConverter
Key: CALCITE-6023
URL: https://issues.apache.org/jira/browse/CALCITE-6023
Project: Calcite
Issue Type: Bug
Affects Versions: 1.35.0
Reporter: Jordan Hannel
Attachments: stacktrace.txt
Hello all, I believe I have found a bug in SqlToRelConverter. The symptom and
repro are outlined below, and the full stacktrace is attached. This is on
calcite version 1.35.0. Any insight would be much appreciated, thanks!
When I parse the below SQL string to get a SqlNode, and call
SqlToRelConverter.convertQuery on this SqlNode, I get error:
```
UnsupportedOperationException: class org.apache.calcite.sql.SqlBasicCall:
LEAD(COUNT(*)) OVER (ORDER BY `dim4`)
```
SQL:
```
SELECT "dim4" AS "dim7", LEAD(COUNT(*), -1) OVER (ORDER BY "dim4") AS
"measure10" FROM ( SELECT "timestamp" AS "dim4" FROM "Shared.factDataset") AS
"t0" GROUP BY "dim4"
```
I have confirmed that my SqlToRelConverter instance seems generally ok, because
it is able to convert many other SqlNodes to RelNodes. After some
experimentation, I noticed that just changing `ORDER BY "dim4"` to `ORDER BY
"t0"."dim4"` fixes the issue - after that, the SqlNode successfully is
translated to a RelNode.
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