On Apr 1, 2009, at 10:09 AM, Tom Lane wrote:
Thus, this is not a problem with string_to_array(), but a
casting problem from text[] to int[].
Nonsense. The question is whether string_to_array is meant to be
useful
for lists of anything except text. I agree you could argue that it
isn't. But even in the domain of text it's not all that cut-and-dried
whether string_to_array should return array[] or array[''] for empty
input. So ISTM we're giving up less than we gain by choosing the
former.
Yeah. I'm okay with either, as long as it's consistent. I have a mild
preference for '{""}', but I can live with ARRAY[] instead. As long as
it's not NULL that gets returned.
Best,
David
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