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* something similar to "on delete cascade" ?
@ 2002-06-28 19:51 Albrecht Berger <berger1517@gmx.ch>
0 siblings, 1 reply; 2+ messages in thread
From: Albrecht Berger @ 2002-06-28 19:51 UTC (permalink / raw)
To: pgsql-sql
Hello,
I need something similar to the "on delete cascade" statement which
doesn't "listen" to the deletion of a row, but to a change of a column.
Do something like that exist ?
My problem is that i don't want to delete datarows, but to set a "deleted"
flag.
In every by a foreign key "linked" row should this deleted flag set
automatically.
Thx
berger
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: something similar to "on delete cascade" ?
@ 2002-06-28 21:33 Josh Berkus <josh@agliodbs.com>
parent: Albrecht Berger <berger1517@gmx.ch>
0 siblings, 0 replies; 2+ messages in thread
From: Josh Berkus @ 2002-06-28 21:33 UTC (permalink / raw)
To: Albrecht Berger <berger1517@gmx.ch>; pgsql-sql
Berger,
> My problem is that i don't want to delete datarows, but to set a "deleted"
> flag.
> In every by a foreign key "linked" row should this deleted flag set
> automatically.
You need to create a custom TRIGGER or RULE. The online docs have extensive
instructions and examples of triggers and rules.
--
-Josh Berkus
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2002-06-28 19:51 something similar to "on delete cascade" ? Albrecht Berger <berger1517@gmx.ch>
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