[jira] Created: (DERBY-3478) Simple column names specified as part of "AS" clause in a table expression are ignore if the table expression is a view.

[A B (JIRA)]

Simple column names specified as part of "AS" clause in a table expression are 
ignore if the table expression is a view.
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                 Key: DERBY-3478
                 URL: https://issues.apache.org/jira/browse/DERBY-3478
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.3.2.1, 10.3.1.4, 10.2.2.0, 10.2.1.6, 10.1.3.1, 
10.1.2.1, 10.1.1.0, 10.0.2.1
            Reporter: A B
            Priority: Minor


Simple repro as follows:

create table t1 (i int, j int);
insert into t1 values (1, 1), (1, -1), (2, 2), (3, -3), (4, 4);

create view v1 as select j, i from t1;
create view v2 (x,y,z) as select j, i, i+j from t1;

-- OK: Returns column names specified in AS clause.
select * from t1 as x(a,b);

-- OK: Returns column names for the views
select * from v1;
select * from v2;

-- WRONG: Ignores column names specified in AS clause for the views.
select * from v1 x(a,b);
select * from v2 as x(a,b,c);

I observed this as far back as 10.0.2.1, so this is not a regression.

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