| From: | Stephen Frost <sfrost(at)snowman(dot)net> |
|---|---|
| To: | Vincenzo Romano <vincenzo(dot)romano(at)notorand(dot)it> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: On Scalability |
| Date: | 2010-10-07 14:29:27 |
| Message-ID: | 20101007142927.GT26232@tamriel.snowman.net |
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| Lists: | pgsql-hackers pgsql-performance |
* Vincenzo Romano (vincenzo(dot)romano(at)notorand(dot)it) wrote:
> I see the main problem in the way the planner "understands" which partition
> is useful and which one is not.
> Having the DDL supporting the feature could just be syntactic sugar
> if the underlying mechanism is inadequate.
I'm pretty sure the point with the DDL would be to have a way for the
user to communicate to the planner more understanding about the
partitioning, not just to be syntactic sugar. With that additional
information, the planner can make a faster and better decision.
Stephen
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