Re: RFC: Restructuring pg_aggregate

Christopher Kings-Lynne wrote:
> 
> Also, it seems to me that at some point we are forced to break client
> compatibility.

It's not a users' consensus at all. I'm suspicious if
DROP COLUMN is such a significant feature to break
client compatibility at our ease.

> Either we add attisdropped field to pg_attribute, or we use
> Hiroshi's (-1 * attnum - offset) idea.  Both Tom and Hiroshi have good
> reasons for each of these - would it be possible for you guys to post with
> your reasons for and against both the techniques. 

I don't object to adding attisdropped field. What
I meant to say is that the differene is very small.

regards,
Hiroshi Inoue