[jira] [Created] (CALCITE-4648) Except returns wrong results

[Sean Broeder (Jira)]

Sean Broeder created CALCITE-4648:
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             Summary: Except returns wrong results
                 Key: CALCITE-4648
                 URL: https://issues.apache.org/jira/browse/CALCITE-4648
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.26.0
            Reporter: Sean Broeder


select n_nationkey from
    (select n_nationkey, n_name from 
        (values (0, 'ALGERIA'), (1, 'ARGENTINA'), (2, 'BRAZIL'), (3, 'CANADA'))
            as nation(n_nationkey, n_name)
    except
    select n_nationkey, n_name from 
        (values (2, 'BRAZIL'), (3, 'CANADA'), (4, 'EGYPT'))
            as nation2(n_nationkey, n_name))

should return 
N_NATIONKEY=0
N_NATIONKEY=1

but returns 
N_NATIONKEY=0
N_NATIONKEY=1
N_NATIONKEY=2
N_NATIONKEY=3



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