Function Doubt

Inside a function of trigger type, i have:

Declare   qCampos record;   StrCampo string;   StrInsert string;
Begin
   StrCampo = '''';   StrInsert = '''';
   For qCampos in select pga.attname from pg_class pgc, pg_attribute pga                  where pgc.relname = '''' ||
tg_relname|| '''' and                  pgc.oid = pga.attrelid and pga.attnum > 0 and                  attisdropped <>
''t''Loop
 
      StrCampo = ''new.'' || qCampos.attname;      StrInsert = StrInsert || virgula || StrCampo || '' - '';   End
Loop;
   Return new;
End;

What i need to do for the variable StrCampo returns to me "SP", "RJ", i 
mean, return a value inserted into the field.
I do not want to use static command new.campo1, new.campo2....

Thanks,

Wilton Ruffato Wonrath



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