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Posted to github@arrow.apache.org by "izveigor (via GitHub)" <gi...@apache.org> on 2023/06/06 12:01:57 UTC
[GitHub] [arrow-datafusion] izveigor opened a new issue, #6561: Support empty array
izveigor opened a new issue, #6561:
URL: https://github.com/apache/arrow-datafusion/issues/6561
### Is your feature request related to a problem or challenge?
Follow on to https://github.com/apache/arrow-datafusion/pull/6384
The basic idea is to create an empty array using the function `array_make` when it takes empty arguments. Also, all array functions must accept an empty array and work with it.
### Describe the solution you'd like
Examples:
```
select make_array();
----
[]
```
```
select array_concat(trim_array(make_array(1, 2, 3), 3), make_array(4, 5), make_array())
----
[4, 5]
```
### Describe alternatives you've considered
If in the course of conversations it turns out that the feature is useless.
### Additional context
Simillar Issues:
https://github.com/apache/arrow-datafusion/issues/6119
https://github.com/apache/arrow-datafusion/issues/6075.
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[GitHub] [arrow-datafusion] alamb closed issue #6561: Support empty array
Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb closed issue #6561: Support empty array
URL: https://github.com/apache/arrow-datafusion/issues/6561
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[GitHub] [arrow-datafusion] alamb commented on issue #6561: Support empty array
Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb commented on issue #6561:
URL: https://github.com/apache/arrow-datafusion/issues/6561#issuecomment-1579293996
I think this is a good first issue for someone to help with
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[GitHub] [arrow-datafusion] parkma99 commented on issue #6561: Support empty array
Posted by "parkma99 (via GitHub)" <gi...@apache.org>.
parkma99 commented on issue #6561:
URL: https://github.com/apache/arrow-datafusion/issues/6561#issuecomment-1579717449
I'd like to work on this . Is anyone already preparing a PR?
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