On 10/8/19 12:33 PM, Michael Lewis wrote:
On Tue, Oct 8, 2019 at 8:00 AM Shatamjeev Dewan <sde...@nbsps.com <mailto:sde...@nbsps.com>> wrote:

    Hi Michael,

    In this case , I always need to include partition key(date)  in
    primary key ( if I have a primary key defined on non partition key
    column e.g id (in my case), to make it a composite primary key (id,
    date). This would allow duplicate id with different date,which is not
    desirable .


If you are generating the ID with a sequence, there isn't any real world likelihood of conflict, but I do understand your concern in terms of enforcing data integrity. Other than creating a custom stored procedure that functions as a primary key constraint, I don't know of any way around that.

Let's take a step back... why do you think you need to partition at all? And why partition by the date/timestamp/timestamptz field?

Because archiving old is (well, /should be/) easier that way.

--
Angular momentum makes the world go 'round.

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