Re: dblink() from GridSQL

Grid passes functions off to underlying databases. Unfortunately, it
doesn't do so when the functions are in the from clause. If it did, that
would work.

But I digress. We're attempting to try either the csv import (which would
require a new script, but no biggie) or a data pull on the underlying
database to a table that only exists on one node.
---
===========================
Samuel Nelson
Consistent State
www.consistentstate.com
303-955-0509
===========================

On Thu, May 5, 2011 at 12:36 PM, Scott Mead <scottm(at)openscg(dot)com> wrote:

>
> On Thu, May 5, 2011 at 1:40 PM, Merlin Moncure <mmoncure(at)gmail(dot)com> wrote:
>
>> On Thu, May 5, 2011 at 12:13 PM, Sam Nelson <samn(at)consistentstate(dot)com>
>> wrote:
>> > Hi List,
>> > We have a customer who is trying to migrate a few PostgresPlus instances
>> to
>> > GridSQL clusters. They have a process that pulls data from another
>> server
>> > using dblink every night, and we're trying to replicate that on the
>> GridSQL
>> > instance, but grid is being a bit of a pain.
>> > Grid doesn't seem to allow functions in from statements, and, of course,
>> it
>> > spits out errors about functions returning records being called in the
>> wrong
>> > context if we just try "select dblink(foo, bar);" (we had to try it).
>> > Has anyone else run into this specific issue?
>>
>
> GridSQL itself doesn't support functions.
>
>
>> Is there a known workaround?
>> > Any ideas on what else we should try?
>>
>>
> You'd have to present the data to be partitioned to the gsql controller for
> partitioning to happen properly, or use the high-speed import that it comes
> with. Could you dump the data to an intermediary csv and then push it at
> the import utility?
>
> --Scott
>
>
>> have you considered wrapping the output of the dblink query in a view?
>>
>> merlin
>>
>> --
>> Sent via pgsql-general mailing list (pgsql-general(at)postgresql(dot)org)
>> To make changes to your subscription:
>> http://www.postgresql.org/mailpref/pgsql-general
>>
>
>