On Tue, Apr 8, 2014 at 5:37 PM, Bruce Momjian <br...@momjian.us> wrote:
> On Tue, Apr  8, 2014 at 05:29:45PM -0400, Tom Lane wrote:
>> Bruce Momjian <br...@momjian.us> writes:
>> > If we ignore backward compatibility, then "Has OIDs" and "Identity
>> > Replica" are similar.  One thing that strongly (for me) supports not
>> > always printing them is that I expect more people will be confused by
>> > the mention of OIDs or "Identity Replica" than will actually care about
>> > these features.  For example, if we always printed "Child tables: 0",
>> > more people would be confused than helped.
>>
>> This is a good argument, actually: these fields are not only noise for
>> most people, but confusing if you don't know the feature they are
>> talking about.
>
> Let me put it this way:  I didn't know what "Identity Replica" meant
> when I saw it in psql.  Now, some might say that is expected, but still. ;-)

Well, that's sorta my concern.  I mean, right now we've got people
saying "what the heck is a replica identity?".  But, if the logical
decoding stuff becomes popular, as I hope it will, that's going to be
an important thing for people to adjust, and the information needs to
be present in a clear and easily-understood way.  I haven't studied
the current code in detail so maybe it's fine.  I just want to make
sure we're not giving it second-class treatment solely on the basis
that it's new and people aren't using it yet.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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