audit table

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The documentation says you cannot use a pseudo type for a table column,
so I was wondering if there is any way to handle what I would like to do.

I want a trigger on every table that inserts the old row into an audit
table (for updates and deletes). If the audit table was per table, then
I could easily have a field of type that table and insert old into it.

Is there any way that I could accomplish this functionality with any
other type, so I could input any record into it?

When I read it out, I would obviously cast it out to the correct type.

Sim
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