Re: On partitioning

On Fri, Dec 12, 2014 at 4:28 PM, Jim Nasby <Jim.Nasby@bluetreble.com> 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.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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