Hyunsik Choi created TAJO-567:
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Summary: Expression projection bugs
Key: TAJO-567
URL: https://issues.apache.org/jira/browse/TAJO-567
Project: Tajo
Issue Type: Bug
Components: planner/optimizer
Reporter: Hyunsik Choi
Assignee: Hyunsik Choi
Fix For: 0.8-incubating
This patch fixes two cases of expression projection bugs. Please take a look at
two example cases:
The point of this case is outer join and constant expression.
{code}
select c_custkey, o.o_orderkey, 'val' as val from customer left outer join
(select * from orders) o on c_custkey = o.o_orderkey
{code}
The point of this case is non-column grouping keys.
{code}
select upper(lower(l_orderkey::text)) as key, count(1) as total from lineitem
group by upper(lower(l_orderkey::text)) order by
upper(lower(l_orderkey::text)), total;
{code}
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