| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Gregory Stark <stark(at)enterprisedb(dot)com>, Greg Stark <gsstark(at)mit(dot)edu>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Variable length varlena headers redux |
| Date: | 2007-02-13 17:52:22 |
| Message-ID: | 200702131752.l1DHqMa26770@momjian.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Tom Lane wrote:
> > We detect cases where the typmod guarantees either a fixed size or a maximum
> > size < 256 bytes.
>
> After last week I would veto this option anyway: it fails unless we
> always know typmod exactly, and I'm here to tell you we don't.
If we can pull this off, it handles short values stored in TEXT fields
too, which is a big win over the typmod idea I had.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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