New bug

I haven't looked into what's causing it yet but...

postgres=# SELECT res, * FROM (       SELECT 'foo'||i AS test, i AS res          FROM (VALUES (1)) AS x(i)
UNIONALL        SELECT 'foo'||i, i          FROM (VALUES (2)) AS x(i)      ) AS x;
 
server closed the connection unexpectedlyThis probably means the server terminated abnormallybefore or while processing
therequest.
 
The connection to the server was lost. Attempting reset: Failed.

TRAP: FailedAssertion("!(child_attr <= new_max_attr)", File: "prepunion.c", Line: 1726)


Works fine on 8.3 so even though that section of code in prepunion.c hasn't
changed:

postgres=# SELECT res, * FROM (SELECT 'foo'||i AS test, i AS res FROM (VALUES (1)) AS x(i) UNION ALL SELECT 'foo'||i, i
FROM(VALUES (2)) AS x(i)) AS x ;res | test | res 
 
-----+------+-----  1 | foo1 |   1  2 | foo2 |   2
(2 rows)



--  Gregory Stark EnterpriseDB          http://www.enterprisedb.com Ask me about EnterpriseDB's PostGIS support!