Dynamic datalogging function/scheme - Mailing list pgsql-general

From rob
Subject Dynamic datalogging function/scheme
Date
Msg-id 1140027029.485974.273400@g47g2000cwa.googlegroups.com
Whole thread Raw
Responses Re: Dynamic datalogging function/scheme  (Mike Rylander <mrylander@gmail.com>)
List pgsql-general
Hello,



Looking for advice on creating as dynamic a datalogging scheme as I can
using plpgsql.


The idea would be to have a trigger function that I could drop on any
table in my database.  Then on update, the function would iterate
through each field, and check to see if NEW.<fieldname> <>
OLD.<fieldname>.  Then a function would be called that would insert
data into a logging table.

I can do this in a very static sense whereby each table has its own
specific trigger function that specifies each column by name
(NEW.co_name <> OLD.co_name), etc.  But, this is pretty cumbersome, and
as new columns are added, we would need to remember to go in and change
the function.

Running Postgresql 8.1

Thanks for any advice/help!


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