Re: rules on INSERT can't UPDATE new instance?
От | Bruce Momjian |
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Тема | Re: rules on INSERT can't UPDATE new instance? |
Дата | |
Msg-id | 200005201135.HAA15697@candle.pha.pa.us обсуждение исходный текст |
Ответ на | rules on INSERT can't UPDATE new instance? (Louis-David Mitterrand <cunctator@apartia.ch>) |
Ответы |
Re: rules on INSERT can't UPDATE new instance?
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Список | pgsql-general |
> > From the create_rule man page this example is offered: > > CREATE RULE example_5 AS > ON INERT TO emp WHERE new.salary > 5000 > DO > UPDATE NEWSET SET salary = 5000; > > But what is "NEWSET"? Is it a keyword? It should be: CREATE RULE example_5 AS ON INERT TO emp WHERE new.salary > 5000 DO UPDATE emp SET salary = 5000 WHERE emp.oid = new.oid; Fixing now. > > My problem is that on an insert with an invalid amount I try to perform > an update with a corrected amount, but the action part of the rule > doesn't affect or "see" the newly inserted row (or so it seems). > > I tried: CREATE RULE ON INSERT TO bid WHERE new.price > limit > DO UPDATE bid SET price = 0.1; > > and all price columns in the bid table would be set to 0.1 _except_ the > newly inserted row. > > Am I missing something obvious? No, buggy documentation. My book has a section on rules too, but you should be fine now. -- Bruce Momjian | http://www.op.net/~candle pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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