Dennis Björklund (db@zigo.dhs.org) reports a bug with a severity of 3
The lower the number the more severe it is.
Short Description
Rename column make views go bad
Long Description
When I rename a column postgres seems to update the views. Or at least the views works after the update. But if I dump
thedatabase (with pg_dump) then I can not restore it since the dumped views still refer to the old column name.
I use postgresql 7.2.1.
If the view had not worked directly after the rename I would not have been surprised (there are other changes that have
thateffect). But that everything works until you try to restore was a bit surprising.
Sample Code
CREATE TABLE foo (
a integer
);
INSERT INTO foo VALUES (1);
INSERT INTO foo VALUES (2);
CREATE VIEW bar AS
SELECT a FROM foo;
-- See, it works
SELECT * FROM bar;
ALTER TABLE bar RENAME a TO b;
-- See, it still works
SELECT * FROM bar;
-- But the definition we see here is the old one
-- and this is the one that is going to be dumped.
-- Of course it can not be restored later when it
-- refers to the wrong column name
\d bar
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