Re: logical column ordering

On 3/3/15 11:23 AM, Bruce Momjian wrote:
> On Thu, Feb 26, 2015 at 01:55:44PM -0800, Josh Berkus wrote:
>> On 02/26/2015 01:54 PM, Alvaro Herrera wrote:
>>> This patch decouples these three things so that they
>>> can changed freely -- but provides no user interface to do so.  I think
>>> that trying to only decouple the thing we currently have in two pieces,
>>> and then have a subsequent patch to decouple again, is additional
>>> conceptual complexity for no gain.
>>
>> Oh, I didn't realize there weren't commands to change the LCO.  Without
>> at least SQL syntax for LCO, I don't see why we'd take it; this sounds
>> more like a WIP patch.
>
> FYI, pg_upgrade is going to need pg_dump --binary-upgrade to output the
> columns in physical order with some logical ordering information, i.e.
> pg_upgrade cannot be passed only logical ordering from pg_dump.

Wouldn't it need attno info too, so all 3 orderings?
-- 
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com