Re: B-tree index with sorting question

Le 29/12/2010 05:28, Bricklen a écrit :
> On 2010-12-28, at 5:22 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>
>> bricklen <bricklen@gmail.com> writes:
>>> In the docs at http://www.postgresql.org/docs/9.0/static/sql-createindex.html,
>>> I see that you can build indexes that include ordering.
>>> Eg. create index t_col_idx on t (col DESC NULLS LAST);
>>
>>> Does that mean that the initial creation of the index acts like the
>>> CLUSTER command?
>>
>> No, it just changes the order that the index keeps its entries in.
>>
>>            regards, tom lane
>
> And that holds true for all subsequents inserts too?

Yes, but still only the index entries.


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Guillaume
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