| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
| Cc: | Curt Sampson <cjs(at)cynic(dot)net>, jtp <john(at)akadine(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: On-Disk Tuple Size |
| Date: | 2002-04-20 15:27:51 |
| Message-ID: | 23456.1019316471@sss.pgh.pa.us |
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| Lists: | pgsql-general pgsql-hackers |
Martijn van Oosterhout <kleptog(at)svana(dot)org> writes:
> Well, from my examination of the on-disk data the CTID stored there is the
> same as its location in the file, so it could just be filled in while
> reading.
Nope. CTID is used as a forward link from an updated tuple to its newer
version.
regards, tom lane
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