Hello Andreas,
Thanks for the reply, The example I have posted is very simple and you are right it is very similar to select max (id) from table_that_does_not_exist; But there are more here, for example imagine I have something like
CREATE VIEW a4 as select .... from a3(), .... ;
In my opinion, this might leads to many problems such as
1. A lot of garbage in the database including functions refers to non existing objects and views defined over these functions.
2. This might also lead to some logical errors; especially, if you have a view defined over such functions and used in external applications.
3. You will get also a broken
dependency graph, in the above example it is obvious that a4 depends on a3 which depends on a2.
Regards
From: Andreas Kretschmer <akretschmer@xxxxxxxxxxxxx>
To: pgsql-general@xxxxxxxxxxxxxx
Sent: Monday, August 20, 2012 2:47 PM
Subject: Re: function depend on view
salah jubeh <s_jubeh@xxxxxxxxx> wrote:
> Hello Guys,
>
> I am having a scenario close to the one below, I have defined a function which
> depends on a view. I am able to drop the view, but my server did not complain
> about the dependency.
>
> In the scenario below, one can drop the views a2 and a1 respectively, and when
> executing a3(), certainly an exception will be raised. I think there should be
> an entry for this dependency in the pg_depend table with dependency type normal
I think, there is no real problem, it's (for me) the same as:
test=# select max(id) from table_that_does_not_exist;
ERROR: relation "table_that_does_not_exist" does not exist
LINE 1: select max(id) from table_that_does_not_exist;
The database can't know and analyse the function-body.
Andreas
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