Hello everyone,
Several columns in sereval tables in my DB should always be lowercase.
I now have a simple function:
create or replace function code_lower() returns trigger as '
begin
NEW.code := lower(NEW.code);
return NEW;
end'
language 'plpgsql';
which I call with a trigger like this:
create trigger my_trigger
before insert or update on my_table
execute procedure code_lower();
This will successfully lower() a field named 'code' in the table
'mytable' or any other table to which I point it. But some of my tables
have fields which should be lower()ed that have names other than
'code'. Writing a function for every of these field seems stupid, so I
tried to give the trigger arguments. Code like this
NEW.$1 := lower(NEW.$1)
won't work, all I get is error messages :-( The doc says this should be
OK (http://www.postgresql.org/docs/7.3/static/triggers.html) but Google
mostly says the opposite. Is this possible at all? How do I read the
TriggerData structure from whithin a pl/pgsql function?
TIA!
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