[
https://issues.apache.org/jira/browse/ARROW-1487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16279311#comment-16279311
]
ASF GitHub Bot commented on ARROW-1487:
---------------------------------------
wesm commented on a change in pull request #1383: ARROW-1487: [C++] Implement
casts from List<A> to List<B>, where a cast function is defined from any A to B
URL: https://github.com/apache/arrow/pull/1383#discussion_r155098546
##########
File path: cpp/src/arrow/compute/kernels/cast.cc
##########
@@ -766,6 +806,7 @@ class CastKernel : public UnaryKernel {
bool is_zero_copy_;
bool can_pre_allocate_values_;
std::shared_ptr<DataType> out_type_;
+ std::vector<std::unique_ptr<UnaryKernel>> child_cast_kernels;
Review comment:
You can take a look at what I just did -- for the moment casting sliced
`ListArray` raises an exception, we'll need to do some more work to make that
work
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
> [C++] Implement casts from List<A> to List<B>, where a cast function is
> defined from any A to B
> -----------------------------------------------------------------------------------------------
>
> Key: ARROW-1487
> URL: https://issues.apache.org/jira/browse/ARROW-1487
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Assignee: Licht Takeuchi
> Labels: pull-request-available
> Fix For: 0.9.0
>
>
> If a cast rule for the child type is not implemented, the failure should
> occur during kernel selection rather than at kernel evaluation time.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
