Robin Qiu created BEAM-10783:
--------------------------------
Summary: ZetaSQL failed on WITH queries because wrong ref column
index calculated in JoinScanWithRefConverter
Key: BEAM-10783
URL: https://issues.apache.org/jira/browse/BEAM-10783
Project: Beam
Issue Type: Bug
Components: dsl-sql-zetasql
Reporter: Robin Qiu
Assignee: Robin Qiu
Some WITH queries, like:
```
WITH t1 AS (select 1 AS k), t2 AS (select 1 AS k), t3 AS (select 1 AS k)
SELECT COUNT(*)
FROM t1 JOIN t3 USING (k)
```
failed on ZetaSQL because how column index is calculated in
JoinScanWithRefConverter is not correct.
In fact, the other converter responsible for JOINs, JoinScanConverter, has the
correct implementation, and that works fine for JOINs that has reference to
WITH queries. So I believe we should delete the incorrect
JoinScanWithRefConverter class and move to the other one.
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