Re: how to find out whether a view is updatable

From: Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: how to find out whether a view is updatable
Date: 2013-06-19 17:54:14
Message-ID: CAEZATCX4S0K9hcEZRVYT=zZGNxxHB4BiN_+nwMBUZyAfGaNpNg@mail.gmail.com
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On 19 June 2013 18:12, Peter Eisentraut <peter_e(at)gmx(dot)net> wrote:
> On 6/19/13 11:50 AM, Dean Rasheed wrote:
>> On 19 June 2013 15:22, Peter Eisentraut <peter_e(at)gmx(dot)net> wrote:
>>> We still don't have any support for this in psql, do we?
>>>
>>
>> No, but at least we now have an API that psql can use.
>>
>> There are still a number of questions about the best way to display it in psql.
>> Should it be another column in \d+'s list of relations?
>> Should it appear in \d+ for a single relation?
>> Should it distinguish updatable from insertable and deletable?
>> Should tab-completion also be modified?
>>
>> Currently I'm thinking yes, yes, no, yes.
>
> I would be satisfied with no, yes, no, no. Although I don't know what
> tab completion changes you have in mind.
>

Yes, on reflection having an extra column in the list of relations is
probably not a good idea. In many cases that's just going to be a list
of tables, all of which will be updatable.

So it would only be for \d+ on a single view or foreign table - simply:

Updatable: yes|no

Tab-completion was discussed on the original thread, but then I forgot about it:
http://www.postgresql.org/message-id/CAA-aLv4_atXiJ7pAQGvh73N5A0F-paTvH5eM-LMqu+oFuzE63w@mail.gmail.com

Regards,
Dean

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