| From: | Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Column as arrays.. more efficient than columns? |
| Date: | 2007-09-07 05:21:03 |
| Message-ID: | 46E0DFBF.8030405@cox.net |
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| Lists: | pgsql-general |
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On 09/06/07 20:53, Merlin Moncure wrote:
[snip]
>
> arrays are interesting and have some useful problems. however, we
> must first discuss the problems...first and foremost if you need to
> read any particular item off the array you must read the entire array
> from disk and you must right all items back to disk for writes.
Reads and writes are done at the page level, so I'm not sure this is
valid.
> also,
> they cause some problems with constraints and other issues that come
> up with de-normalization tactics.
ACK.
- --
Ron Johnson, Jr.
Jefferson LA USA
Give a man a fish, and he eats for a day.
Hit him with a fish, and he goes away for good!
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