Just to avoid confusion, when I say clustered I am talking about
postgresql.  See:
http://www.postgresql.org/docs/current/interactive/sql-cluster.html




2013/10/9 Derek <sp1d...@gmail.com>

> You have a point, if it's a grid or smartgrid, and paging is enabled, it
> should be sorted by the developer's preference, and secondly by the primary
> key, whether that's an ID or something else.
>
>
> On Wednesday, October 9, 2013 1:41:04 PM UTC-7, Anthony wrote:
>>
>>
>> Good point -- perhaps orderby_on_limitby should default to False -- then
>>>> the grid can simply set it to True. Actually, I wonder if the grid should
>>>> go further and additionally order on primary keys even when an explicit
>>>> orderby is specified (just in case the orderby field(s) do not contain
>>>> unique values).
>>>>
>>>
>>> No, it should preserve the order you set. If you know enough to set the
>>> order, you can add columns to the order easily enough.
>>>
>>
>> Not sure I agree with that. Users typically specify an orderby only
>> because they would like the records displayed in a particular order, not
>> because they are seeking to explicitly handle pagination. Let's say I'm
>> listing US addresses in a grid and specify orderby=db.address.state. In
>> that case, I'm saying I want addresses sorted by state, and within state, I
>> don't care about the order. But I'm not saying that I want pagination to
>> fail in case records from a given state happen to span from one page to the
>> next. Just because I want to order by state doesn't mean I know enough to
>> provide all the necessary orderby fields to guarantee proper pagination. If
>> the grid does this for me when I specify no orderby, why shouldn't it do it
>> for me when I do specify an orderby?
>>
>> Anthony
>>
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