"David E. Wheeler" <david(at)justatheory(dot)com> writes:
> Oh. Is there a way to declare an empty 1-dimension array?

Doesn't look like it:

regression=# select '[1:0]={}'::text[];
ERROR:  upper bound cannot be less than lower bound
LINE 1: select '[1:0]={}'::text[];
               ^

Possibly we should allow that, but just as with the other point, it
would require some thought and investigation to make sure we weren't
creating more problems than we solved.

			regards, tom lane

In response to

• Re: Should array_length() Return NULL at 2013-03-15 22:08:37 from David E. Wheeler

Responses

• Re: Should array_length() Return NULL at 2013-03-15 23:06:38 from David E. Wheeler

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