Re: Examing cotets of NEW & OLD in a function programed in perl

On Tue, Mar 03, 2020 at 12:59:00PM -0500, Tom Lane wrote:
> stan <stanb@panix.com> writes:
> > I need to write a generic function to process data before allowing the
> > insert or update to continue.
> > To do this, I need to be able to examine the NEW, and OLD structures
> > without prior knowledge of the structure of the table that fired the
> > trigger.
> 
> AFAIR, they're just hashes in Perl, so you should be able to do
> stuff like iterating over the hash keys.
> 
>             regards, tom lane

So, they should just be visible as OLD, and NEW as hasshes?

Sorry for my lack of understnading.

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