Re: Array dimension lost if dimension length is zero

Shay Rojansky <roji@roji.org> writes:
> An Npgsql user has reported an edge case use which seems to be a bug.
> When sending a multidimensional array to PostgreSQL, if the length of a
> dimension is 0, that dimension is lost. That is, the user sends a
> 2-dimensional array with 0 for both dimensions; trying to read this back
> will return a 1-dimensional array.

This is intentional: all empty arrays are alike, with zero dimensions
(not one dimension, but none).

Probably a lot of these decisions would be made differently if we were
starting over in a green field; but since we're not, I'm disinclined
to touch it.

            regards, tom lane