Re: [Postgres-xc-general] modifying values at the datanode

On Sat, Oct 5, 2013 at 2:58 AM, Sandeep Gupta <gup...@gm...> wrote:
>  I understand that the datanodes are read only and that updates/insert can
> happen at coordinator.
You got it.

> Also, it does not allow modification of column over which the records are distributed.
Hum no, 1.1 allows ALTER TABLE that you can use to change the
distribution type of a table.

> However, in case I know what I am doing, it there anyway possible to modify
> the values directly at datanodes.
> The modifications are not over column over which distribution happens.
If you mean by connecting directly to the Datanodes, no. You would
break data consistency if table is replicated by the way by doing
that. Let the Coordinator planner do the job and choose the remote
nodes for you.

There have been discussion to merge Coordinators and Datanodes
together though. This would allow what you say, with a simpler cluster
design.
-- 
Michael