How can I do "OLD.columnName != NEW.columnName" if I don't know what the
columnNames are at Compile Time?
I have the columnName in a variable.
Are you trying to do this from a plpgsql function? If so then I think
you should try to do this from a C function.
With C functions you will get more control over the new and old
versions of the tuple since you get their pointers via
TriggerData->tg_trigtuple (old tuple) and TriggerData->tg_newtuple
(new tuple).
I think this would work. And if there is no other possibility i will do
that.
But as I saw, it is necessary to have Sysadmin rights, if you want to
add a C function.
If possible i want to do it as a regular DB-Owner.
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