Re: pgsql: Allow to omit boundaries in array subscript

Teodor Sigaev <teodor@sigaev.ru> writes:
> Allow to omit boundaries in array subscript

For the record, this patch wasn't nearly ready to commit.

* User-facing documentation is very poor; at the least it needs
copy-editing by someone with better command of English.

* Comments are next to nonexistent.  I note for example that the
description of struct A_Indices wasn't updated, much less that of
ArrayRef.

* Some error messages aren't meeting the style guidelines.

* I'm dubious that the parsetree representation is well-chosen.
Probably a single is_slice flag would have been better.

* Dumps core on fixed-length arrays, eg

regression=# select f1[1:] from point_tbl;
server closed the connection unexpectedly

I think it should be reverted and sent back for another round of
review.  If not, I'll probably spend tomorrow cleaning it up,
but I really have other things I should be doing.

            regards, tom lane