Possible bug in inheritance/referential integrity

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                        POSTGRESQL BUG REPORT TEMPLATE
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Your name        : Thomas Jacob
Your email address    : jacob@internet24.de


System Configuration
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  Architecture (example: Intel Pentium)      : AMD Duron

  Operating System (example: Linux 2.4.18)     : Linux 2.6.7

  PostgreSQL version (example: PostgreSQL-7.4.6): PostgreSQL-7.4.6

  Compiler used (example:  gcc 2.95.2)        : gcc 3.3.4


Please enter a FULL description of your problem:
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Rows inserted into a table "sub" inherited from a table
"super" do not seem to exist in the super-table from the point of
view of the foreign key constraint checker in references to the
"super"-table, even though a SELECT query displays the rows that
were inserted into sub also in super, as should be (See example
provided).

But they should exist, shouldn't they? Or do I simply not
understand PostgreSQL's inheritance model correctly?


Please describe a way to repeat the problem.   Please try to provide a
concise reproducible example, if at all possible:=20
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CREATE TABLE super (id INT PRIMARY KEY);
CREATE TABLE super_ref (id INT REFERENCES super);
CREATE TABLE sub () INHERITS(super);

-- this works
INSERT INTO super VALUES(1); INSERT INTO super_ref VALUES(1);

-- clean up
DELETE FROM super_ref; DELETE FROM super;

-- this fails with: ERROR:  insert or update on table "super_ref" violates =
foreign key constraint "$1"
INSERT INTO sub VALUES(1); INSERT INTO super_ref VALUES(1);


If you know how this problem might be fixed, list the solution below:
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