| From: | Jan Wieck <JanWieck(at)Yahoo(dot)com> |
|---|---|
| To: | Jinqiang Han <postgresql(at)db(dot)pku(dot)edu(dot)cn> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: inquiery |
| Date: | 2003-03-31 17:14:10 |
| Message-ID: | 3E887762.5B68F64B@Yahoo.com |
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| Lists: | pgsql-hackers |
Jinqiang Han wrote:
>
> hello£¬
> what is RIR rules in Rewriter? What RIR means?
> Thank you very much.
> Jinqiang Han
Retrieve-Instead-Retrieve
The name is based on history.
RETRIEVE was the PostQUEL keyword for what you know as SELECT. A rule
fired on a RETRIEVE event, that is an unconditional INSTEAD rule with
exactly one RETRIEVE action is called RIR-rule.
Jan
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