selendym opened a new issue, #240:
URL: https://github.com/apache/age/issues/240
**Describe the bug**
Negative indices on arrays seem to return nothing/null.
**How are you accessing AGE (Command line, driver, etc.)?**
With `psql` from the docker image. One container for the server and another
one for the client.
**What data setup do we need to do?**
```pgsql
select * from ag_catalog.create_graph('g');
```
**What is the necessary configuration info needed?**
Just the docker image built from master branch.
**What is the command that caused the error?**
```pgsql
select * from ag_catalog.cypher('g', $$ with [0, 1, 2, 3] as l return l[-1]
$$) as (r0 ag_catalog.agtype);
```
The above returns (note the empty line):
```text
r0
----
(1 row)
```
Compare with:
```pgsql
select * from ag_catalog.cypher('g', $$ with [0, 1, 2, 3] as l return l[3]
$$) as (r0 ag_catalog.agtype);
select * from ag_catalog.cypher('g', $$ with [0, 1, 2, 3] as l return
l[-1..] $$) as (r0 ag_catalog.agtype);
```
which return:
```text
r0
----
3
(1 row)
```
and:
```
r0
-----
[3]
(1 row)
```
**Expected behavior**
The negative index should work as described in:
https://age.apache.org/docs/master/intro/types.html#negative-index-access
**Environment (please complete the following information):**
- env: docker
- branch: master
- commit: 6fbdfa83d467981fb52f4318f9464bb2c9a031d9
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