Re: Speeding up INSERTs and UPDATEs to partitioned tables

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От Amit Langote
Тема Re: Speeding up INSERTs and UPDATEs to partitioned tables
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Msg-id 206ee75f-2120-c63a-945c-ff3644305177@lab.ntt.co.jp
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Ответ на Re: Speeding up INSERTs and UPDATEs to partitioned tables  (David Rowley <david.rowley@2ndquadrant.com>)
Ответы Re: Speeding up INSERTs and UPDATEs to partitioned tables  (David Rowley <david.rowley@2ndquadrant.com>)
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On 2018/11/01 8:58, David Rowley wrote:
> On 1 November 2018 at 06:45, Robert Haas <robertmhaas@gmail.com> wrote:
>> On Wed, Aug 22, 2018 at 8:30 AM David Rowley
>> <david.rowley@2ndquadrant.com> wrote:
>>> On 22 August 2018 at 19:08, Amit Langote <Langote_Amit_f8@lab.ntt.co.jp> wrote:
>>>> +#define PartitionTupRoutingGetToParentMap(p, i) \
>>>> +#define PartitionTupRoutingGetToChildMap(p, i) \
>>>>
>>>> If the "Get" could be replaced by "Child" and "Parent", respectively,
>>>> they'd sound more meaningful, imho.
>>>
>>> I did that to save 3 chars.  I think putting the additional
>>> Child/Parent in the name is not really required. It's not as if we're
>>> going to have a ParentToParent or a ChildToChild map, so I thought it
>>> might be okay to assume that if it's "ToParent", that it's being
>>> converted from the child and "ToChild" seems safe to assume it's being
>>> converted from the parent. I can change it though if you feel very
>>> strongly that what I've got is no good.
>>
>> I'm not sure exactly what is best here, but it seems to unlikely to me
>> that somebody is going to read that macro name and think, oh, that
>> means "get the to-parent map".  They are more like be confused by the
>> juxtaposition of "get" and "to".
>>
>> I think a better way to shorten the name would be to truncate the
>> PartitionTupRouting() prefix in some way, e.g. dropping TupRouting.
> 
> Thanks for chipping in on this.
> 
> I agree. I don't think "TupRouting" really needs to be in the name.
> Probably "To" can also just become "2" and we can put back the
> Parent/Child before that.

Agree that "TupRouting" can go, but "To" is not too long for using "2"
instead of it.

Thanks,
Amit



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