From: | "Walker, Jed S" <Jed_Walker(at)cable(dot)comcast(dot)com> |
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To: | "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | <pgsql-novice(at)postgresql(dot)org> |
Subject: | Re: Sparse Data |
Date: | 2005-05-24 18:43:00 |
Message-ID: | 4A59B6AA01F1874283EA66C976ED51FC0E19A1@COENGEXCMB01.cable.comcast.com |
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Lists: | pgsql-novice |
Yes, that is what I'm referring to. Thanks!
-----Original Message-----
From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
Sent: Tuesday, May 24, 2005 11:14 AM
To: Walker, Jed S
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: [NOVICE] Sparse Data
"Walker, Jed S" <Jed_Walker(at)cable(dot)comcast(dot)com> writes:
> Does sparse data cause significant space wastage or performance issues
> in PostgreSQL?
What do you mean by "sparse data" exactly? If you're thinking of a
table in which many fields are null, no, there's no penalty for that.
regards, tom lane
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