Re: [SQL] few questions about rules: timestamp, new.oid - Mailing list pgsql-sql

From Herouth Maoz
Subject Re: [SQL] few questions about rules: timestamp, new.oid
Date
Msg-id l03130302b3cc756bcae7@[147.233.159.109]
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In response to few questions about rules: timestamp, new.oid  (Michael Olivier <mo@local2me.com>)
List pgsql-sql
At 00:04 +0300 on 03/08/1999, Michael Olivier wrote:


> 1. I'm storing a datetime timestamp for when the change was entered into
> my changes table, but the timestamp doesn't change with subsequent
> tests:
>
>     create rule users_modify_rule as on update to users do
>         insert into changes (table_name, change_time, ref_oid, type)
>         values ('users', 'now', current.oid, 'update');

Better use a function than a constant - try now() instead. A constant
usually gets interpreted at the time of creation. A function remains to be
interpreted at the time of use.

Herouth

--
Herouth Maoz, Internet developer.
Open University of Israel - Telem project
http://telem.openu.ac.il/~herutma




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