Re: Query on postgres_fdw extension

Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com> writes:
> On Fri, May 14, 2021 at 8:23 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> One conceivable workaround is to do your insertions through a
>> foreign table that doesn't even have the serial column, so that
>> the INSERT command received by the remote server lacks that
>> column and the default gets applied. Probably too messy though.

> Then the serial column cannot be selected via the foreign table.

Yeah, you'd probably need to use different tables for inserting
and reading, which is why I called it messy.

The idea you pointed to in Michael's blog might work though,
ie make a local function that reaches over to the remote server
to get a globally-valid next sequence value, and use that as
the default expression of the foreign table.

regards, tom lane