Lantao Jin created CALCITE-4729:
-----------------------------------
Summary: Column in CTE should be ambiguous
Key: CALCITE-4729
URL: https://issues.apache.org/jira/browse/CALCITE-4729
Project: Calcite
Issue Type: Bug
Components: core
Reporter: Lantao Jin
{code}
create table test (a int);
with t as
(
select * from test t1 join test t2 on t1.a=t2.a
)
select t.a from t;
{code}
The above query fails with 't.a' is ambiguous in Spark/Presto/Postgres. But it
succeeds in Calcite. Currently, many and many companies use Calcite as a query
federation layer upon multiple query engines such as Spark and Presto. But this
behavior confused users.
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