| From: | Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp> |
|---|---|
| To: | tgl(at)sss(dot)pgh(dot)pa(dot)us |
| Cc: | pgman(at)candle(dot)pha(dot)pa(dot)us, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Tupple statistics function |
| Date: | 2001-09-22 06:03:33 |
| Message-ID: | 20010922150333R.t-ishii@sra.co.jp |
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| Thread: | |
| Lists: | pgsql-general pgsql-hackers |
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > ... Maybe he has coded that in there.
>
> Maybe so, but he didn't say. That's why I was asking for exact
> documentation.
As you can see from the source code, it just use
HeapTupleSatisfiesNow(). I wrote this function for the admin
use. He/she should know if active transactions are touching the table,
I think. But more precise guess might be interesting for some cases.
--
Tatsuo Ishii
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