tree 817249a8a7ae9547f4ebac04be14fdb9fe7f2599
parent efef0919bb1a6cefbce2869ca9ce53fc04cdf77d
author Dmitry Lychagin <dmitry.lychagin@couchbase.com> 1587139328 -0700
committer Dmitry Lychagin <dmitry.lychagin@couchbase.com> 1587151157 +0000

[NO ISSUE][RT] Support negative positions in path expression

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Support negative array index in path expressions:
  array[-1] addresses the last element,
  array[-2] next to last, and so on
- Add testcase and update documentation

Change-Id: Ib2bdeab42d3bd37c21d860dda583a2762a74e2fb
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/5845
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Dmitry Lychagin <dmitry.lychagin@couchbase.com>
Reviewed-by: Ali Alsuliman <ali.al.solaiman@gmail.com>