Re: Sorting with materialized paths

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От Tom Lane
Тема Re: Sorting with materialized paths
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Msg-id 4000.1273420056@sss.pgh.pa.us
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Ответ на Sorting with materialized paths  (Ovid <curtis_ovid_poe@yahoo.com>)
Ответы Re: Sorting with materialized paths  (Greg Stark <gsstark@mit.edu>)
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Ovid <curtis_ovid_poe@yahoo.com> writes:
> My apologies. This isn't PG-specific, but since this is running on PostgreSQL 8.4, maybe there are specific features
whichmight help. 
> I have a tree structure in a table and it uses materialized paths to allow me to find children quickly. However, I
alsoneed to sort the results depth-first, as one would expect with threaded forum replies. 

I think contrib/ltree might help you here.  However, it seems to sort
node names textually rather than numerically, so you might need to
change it a bit for your own purposes.

            regards, tom lane

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