On 04/04/2013 04:28 PM, Robert Lefkowitz wrote:
Not sure if this is a feature request or a bug report.
I'm trying to use Foreign Tables for a variety of things and it is useful to
have a foreign table which appears to be read/write.
Having set one up, I can select data from it. However, I can't insert, update
or delete.
No worries, thinks I. I'll just create an INSTEAD OF TRIGGER -- and handle
the updates that way.
However, one can't create a TRIGGER (in PosgreSQL version 9.2) on a foreign
table -- the error message is: not a table or view.
My current workaround is to create a view which is defined as CREATE VIEW
viewOnForeignTable AS SELECT * FROM foreignTable
I can then create INSTEAD OF TRIGGERs on viewOnForeignTable, as well as SELECT
from viewOnForeignTable -- so that becomes the canonical interface.
However, it seems like it should be just as acceptable to apply the INSTEAD OF
TRIGGERs to the FOREIGN TABLE .
Should I consider this a bug (that I can't create aTRIGGER on a foreign table?)
or a feature request (to allow creating TRIGGERs on foreign tables)?
FYI, 9.3 will have update/insert/delete depending on the capabilities of
the underlying Foreign Data Wrapper:
http://www.depesz.com/2013/03/17/waiting-for-9-3-support-writable-foreign-tables/
Not sure if that fills your need?
You could file a feature request but new features are not added to minor
releases, so you will not see it until a later major release. At a guess
9.4+.
Thanks,
r0ml
--
Adrian Klaver
adrian.kla...@gmail.com
--
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general
