Bertrand Petit <[EMAIL PROTECTED]> writes:When updating a NULL cell which is an array of something, setting an adressed member of a non existent array, the value of the cell is not changed.
Assigning to a member of a NULL array has always yielded another NULL array. While I've never been particularly satisfied with that behavior either, it has some logical symmetry to it. What do you think the behavior ought to be? (In particular, if a non-null array should result, where do we get its dimensions and subscripts from?)
I think the behavior is correct. An analogy I is text concatenation. If I concatenate 'a' to NULL::text, I get NULL. But if I concatenate 'a' to an empty text value, '', I get 'a'.
Similarly if you assign to an element of an empty array, '{}', you get an array with the one appended element. Not sure if this works pre-7.4 though -- I know I made some changes related to this, but I forget the exact details.
Joe
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