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Re: Materialized Views: msg#00044

db.postgresql.german

Subject: Re: Materialized Views



> am 22.06.2006, um 14:30:12 +0200 mailte Andreas Seik folgendes:
> > Dabei ändert sich die Views _in der Regel_ nicht, da sich die
> > zugrundelegenden Tabellen selten ändern.
> >
> > Ich habe bissher nicht mit Triggern gearbeitet, aber ich könnte mir
> > folgendes
> > vorstellen:
> >
> > Ich habe anstelle der View eine Tabelle (Folgetabelle), die
> bei jedem
> > lesenden Zugriff zunächst prüft, ob sich die Grundlegende Tabellen
> > gändert haben. Wenn ja, dann erstelle diese Folgetabelle neu.
>
> Es gibt IIRC leider keine Trigger auf SELECT.

aber rules koennen das doch. war das nicht so, das man aktualisierbare views
mittels
rules erzeugen kann? hilft das hier nicht auch? nur so ein hinweis, bin mir
nicht sicher
ob es in diesem fall passt, ich weis nur sind schon eine feine sache! ;)


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