ALTER VIEW crashes the server if the new version has an artificial (aggregate
or union) stream at the position of a regular context in the older version
--------------------------------------------------------------------------------------------------------------------------------------------------------
Key: CORE-3503
URL: http://tracker.firebirdsql.org/browse/CORE-3503
Project: Firebird Core
Issue Type: Bug
Components: Engine
Affects Versions: 2.5.0, 3.0 Initial
Reporter: Dmitry Yemanov
Test case:
create or alter view v_test (id, col)
as
select rdb$relation_id, 1 from rdb$relations;
commit;
-- reconnect;
create or alter view v_test (id)
as
select rdb$relation_id from rdb$relations
union all
select rdb$relation_id from rdb$relations;
commit; -- here the crash happens
This is a regression introduced while fixing CORE-2386.
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