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From: Jim Nasby <[email protected]>
To: Robert Haas <[email protected]>
Cc: Amit Langote <[email protected]>
Cc: Amit Kapila <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: Bruce Momjian <[email protected]>
Cc: Pg Hackers <[email protected]>
Subject: Re: On partitioning
Date: Sat, 13 Dec 2014 11:23:22 -0600
Message-ID: <[email protected]> (raw)
In-Reply-To: <CA+TgmobH--E+GkGHsprjN-e_4-YR4208pmE9zp90sEjBjDBDMg@mail.gmail.com>
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On 12/12/14, 3:48 PM, Robert Haas wrote:
> On Fri, Dec 12, 2014 at 4:28 PM, Jim Nasby <[email protected]> wrote:
>>> Sure.  Mind you, I'm not proposing that the syntax I just mooted is
>>> actually for the best.  What I'm saying is that we need to talk about
>>> it.
>>
>> Frankly, if we're going to require users to explicitly define each partition
>> then I think the most appropriate API would be a function. Users will be
>> writing code to create new partitions as needed, and it's generally easier
>> to write code that calls a function as opposed to glomming a text string
>> together and passing that to EXECUTE.
>
> I have very little idea what the API you're imagining would actually
> look like from this description, but it sounds like a terrible idea.
> We don't want to make this infinitely general.  We need a *fast* way
> to go from a value (or list of values, one per partitioning column) to
> a partition OID, and the way to get there is not to call arbitrary
> user code.

You were talking about the syntax for partition creation/definition; that's the API I was referring to.
-- 
Jim Nasby, Data Architect, Blue Treble Consulting
Data in Trouble? Get it in Treble! http://BlueTreble.com


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