| From: | Guillaume Lelarge <guillaume(at)lelarge(dot)info> |
|---|---|
| To: | "ivan(dot)hou" <ivan(dot)hou(at)msa(dot)hinet(dot)net> |
| Cc: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: What's the XID? |
| Date: | 2008-01-03 07:54:53 |
| Message-ID: | 477C94CD.2070607@lelarge.info |
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| Lists: | pgsql-admin |
ivan.hou wrote:
> how do u know this theory ? 1 + (2 * number of columns in the SELECT)
> just try & test?
I did this at first, yes. I changed log_statement to all, reload the
configuration, and voila. I've seen that pgAdmin's query tool executes
this number of queries to display the result.
> or have any document?
After I did a few tests, I get a look at the source. There's no other
documents, as far as I know, about this.
Regards.
--
Guillaume.
http://www.postgresqlfr.org
http://dalibo.com
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