Database Design Advice

[Mark Stringer]

On 11/08/2013 08:17 AM, James Laver wrote:
>
> Smylers <Smylers at stripey.com> wrote:
>> William Blunn writes:
>>
>>> Instead of storing a version ID (e.g. 1, 2, 3, 4, 5, 6), you could
>>> store a SERIAL.
>>>
>>> So for one document ID, you might store versions 10, 11, 12, 50, 75,
>> 87.
> This was my immediate thought as well, but I'd probably cheat and declarr the document version numbers to be oureky decorative and thus the realm of userspace to turn them into 1,2,3,4,5 etc. -- one can, after all fix this with a single line of code.
>
> Performance (and complexity) would be much better than triggers
>
 From the OP: "But version should start at 1 for each document and be 
consecutive."

I'd guess that the date_created is being stored in the table, so could 
be used to order the records without the need for a serial, if ordering 
is the only concern.