Hello,
I have a few questions inserting data using Foreign Data Wrappers (FDW).
Consider this simple example.
On PostgreSQL Database A (remote):
CREATE TABLE APP.TEST (
ID BIGSERIAL NOT NULL,
FIRST_NAME text,
LAST_NAME text,
STATUS integer NOT NULL DEFAULT 1,
CONSTRAINT PK_USER PRIMARY KEY (ID)
);
When I connect directly to this database I can insert without any issues.
Example:
insert into app.test(first_name) values('Peter');
INSERT 0 1
-------
On PostgreSQL Database B (local):
CREATE SERVER remote_server FOREIGN DATA WRAPPER postgres_fdw ...
IMPORT FOREIGN SCHEMA APP LIMIT TO (TEST)
FROM SERVER remote_server INTO public;
-------
When I try to do a simple insert into the test table on database B I get an
error:
insert into test(first_name) values('Mark');
ERROR: null value in column "id" of relation "test" violates not-null
constraint
If I manually set the id, I get another error
insert into "user"(id, first_name) values(2, 'Mark');
ERROR: null value in column "status" of relation "test" violates not-null
constraint
Only after I set both the id and status fields can I successfully insert.
insert into test(id, first_name, status) values(2, 'Mark', 1);
INSERT 0 1
I guess the FDW is not "seeing" the default value for status and the bigserial
sequence for the id column. Is there anyway around this? Is there an option I
missed when I called IMPORT FOREIGN SCHEMA? Or is there a hack using views or
triggers?
Thanks in advance,
Peter
