Re: inquiery - Mailing list pgsql-hackers

From Jan Wieck
Subject Re: inquiery
Date
Msg-id 3E887762.5B68F64B@Yahoo.com
Whole thread Raw
In response to inquiery  ("Jinqiang Han" <postgresql@db.pku.edu.cn>)
List 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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