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https://issues.apache.org/jira/browse/CALCITE-2189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez resolved CALCITE-2189.
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Resolution: Fixed
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/47c49c9 .
> RelMdAllPredicates fast bail out creates mismatch with RelMdTableReferences
> ---------------------------------------------------------------------------
>
> Key: CALCITE-2189
> URL: https://issues.apache.org/jira/browse/CALCITE-2189
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Fix For: 1.16.0
>
>
> The idea behind the metadata providers introduced in CALCITE-1682 is that we
> can identify the lineage of the expressions. If we bypass assigning a unique
> identifier for the table in RelMdAllPredicates because there are no
> predicates on those tables, then we will end up referencing wrong tables.
> E.g.
> {code}
> select x.sal from
> (select a.deptno, c.sal from (select * from emp limit 7) as a
> cross join (select * from dept limit 1) as b
> cross join (select * from emp where empno = 5 limit 2) as c) as x;
> {code}
> Table refs: {{[[CATALOG, SALES, DEPT].#0, [CATALOG, SALES, EMP].#0, [CATALOG,
> SALES, EMP].#1]}}
> Extracted predicate without fix (wrong): {{=([CATALOG, SALES, EMP].#0.$0, 5)}}
> Extracted predicate with fix (correct): {{=([CATALOG, SALES, EMP].#1.$0, 5)}}
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