Retrieving foreign key information via jdbc

Hi,

Using the postgres jdbc driver is there any way it's possible to retrieve
the details of the foreign key created in:

CREATE TABLE "table_a" (
"c" character varying(10) NOT NULL UNIQUE,
"a" int,
"b" int,
Constraint "table_a_pkey" Primary Key ("a", "b")
);

CREATE TABLE "table_b" (
"c" character varying(10) NOT NULL references table_a(c)
);

I tried using getImportedKeys, but the implementation seems to be written
assuming that all foreign keys reference a primary key in another table
and returns incorrect results in the case above (see results below).

Whether this key should be returned or not seems a little unclear to me
after reading the apidocs, but even if I was sure from the look I've had
at the code I don't know enough about the postgres system tables to fix
it..

Thanks for your time,

Michael

PKTABLE_CAT : null
PKTABLE_SCHEM : null
PKTABLE_NAME : table_a
PKCOLUMN_NAME : c
FKTABLE_CAT : null
FKTABLE_SCHEM : null
FKTABLE_NAME : table_b
FKCOLUMN_NAME : c
KEY_SEQ : 1
UPDATE_RULE : 3
DELETE_RULE : 3
FK_NAME : <unnamed>\000table_b\000table_a\000UNSPECIFIED\000c\000c\000
PK_NAME : table_a_pkey
DEFERRABILITY : 7
********************************************************************************
PKTABLE_CAT : null
PKTABLE_SCHEM : null
PKTABLE_NAME : table_a
PKCOLUMN_NAME :
FKTABLE_CAT : null
FKTABLE_SCHEM : null
FKTABLE_NAME : table_b
FKCOLUMN_NAME :
KEY_SEQ : 2
UPDATE_RULE : 3
DELETE_RULE : 3
FK_NAME : <unnamed>\000table_b\000table_a\000UNSPECIFIED\000c\000c\000
PK_NAME : table_a_pkey
DEFERRABILITY : 7

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