Re: [GENERAL] Default values, inserts, and rules...
| От | Sean Chittenden |
|---|---|
| Тема | Re: [GENERAL] Default values, inserts, and rules... |
| Дата | |
| Msg-id | 20020822073059.GL46902@ninja1.internal обсуждение исходный текст |
| Ответ на | Re: Default values, inserts, and rules... (Tom Lane <tgl@sss.pgh.pa.us>) |
| Список | pgsql-bugs |
> Rules do not operate on individual tuples --- a rule is a textual > transformation on the whole query before it ever gets executed at > all. What gets substituted into the INSERT command in your rule is > not any specific tuple's value, but the NEXTVAL()-containing > expression. That makes loads of sense. I thought it did its transformations further down in the process and on individual tuples as opposed to a wholistic rewrite of the query. Using rules would've worked had I not tried to be clever with tracing transaction histories through tags. :-/ Guess it's no biggie though... rules just are so elegant compared to triggers. :~) -sc PS I converted everything to use schemas tonight and I can't applaud the efforts enough: they really clean up the database and make things much usable. The output of psql is also much easier on the eyes for large and complex schemas. -- Sean Chittenden
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