Tom Lane said:
> I think plperl should be fixed to translate undef to NULL when
> returning an array, but currently it translates to an empty string:
>
> pl_regression=# CREATE OR REPLACE function returns_array() returns
> text[] as $$ pl_regression$# return ['a,b','c"d',undef,'e-f']; $$
> LANGUAGE plperl; CREATE FUNCTION
> pl_regression=# select returns_array();
> returns_array
> -----------------------
> {"a,b","c\"d","",e-f}
> (1 row)
>
> There might be some problems going in the other direction, too;
> I haven't tried. Anybody feeling eager to fix this?
>
I will fix this tomorrow - it's about a 4 line fix. I've missed the details
- we're just using an unquoted NULL in array literals?
cheers
andrew