Change format of FDW options used in \d* commands (was: Re: per-column FDW options, v5)

(2011/08/12 1:05), Robert Haas wrote:
> On Thu, Aug 11, 2011 at 12:04 PM, Alvaro Herrera
> <alvherre(at)commandprompt(dot)com> wrote:
>> Excerpts from Robert Haas's message of jue ago 11 11:50:40 -0400 2011:
>>> 2011/8/9 Shigeru Hanada<shigeru(dot)hanada(at)gmail(dot)com>:
>>>> I'd like to pick #3, and also change per-column options format. In
>>>> addition, I'd like to change options format for other FDW objects such
>>>> as wrappers, servers and user mappings for consistency. Of course, only
>>>> if it's acceptable to break backward compatibility...
>>>
>>> I think it's fine to change the display format. We haven't had these
>>> features for very long, so users hopefully shouldn't be expecting that
>>> everything is set in stone. We have made far bigger changes to
>>> backslash commands that have been around for far longer (\df, I'm
>>> looking at you).
>>
>> We've never promised that backslash commands behave identically across
>> releases. I think they are more for human consumption than machine, so
>> why would we care about changing one of them a bit?
>
> Yeah, I agree.

Thanks for the comments.

Attached patch changes various \d*+ commands to show FDW options in same
format as OPTIONS clause. IMHO the new format is easier to read.

Example)
old: {"delimiter=,","quote=\""}
new: delimiter ',', quote '"'

All regression tests including contrib's installcheck passed.

I'll add this patch to CF app as new item.

Regards,
--
Shigeru Hanada