Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Cast nested List to LargeList #8305

Closed
Weijun-H opened this issue Nov 22, 2023 · 2 comments · Fixed by #8882
Closed

Cast nested List to LargeList #8305

Weijun-H opened this issue Nov 22, 2023 · 2 comments · Fixed by #8882
Labels
enhancement New feature or request

Comments

@Weijun-H
Copy link
Member

Weijun-H commented Nov 22, 2023

Is your feature request related to a problem or challenge?

datafusion cannot cast nested List to LargeList, like List(List(Int64)) to LargeList(LargeList(Int64)).

select arrow_cast(make_array(make_array(1, 2, 3), make_array(4, 5, 6)), 'LargeList(LargeList(Int64))');

Error during planning: Cannot automatically convert List(Field { name: "item", data_type: List(Field { name: "item", data_type: Int64, nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }), nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }) to LargeList(Field { name: "item", data_type: LargeList(Field { name: "item", data_type: Int64, nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }), nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} })

Describe the solution you'd like

https://github.com/apache/arrow-rs/blob/master/arrow-cast/src/cast.rs#L133-L135

        (List(list_from), LargeList(list_to)) => {
            list_from.data_type() == list_to.data_type()
        }

Describe alternatives you've considered

No response

Additional context

No response

@Weijun-H
Copy link
Member Author

Weijun-H commented Dec 1, 2023

Will be fixed by arrow-rs 50.0

@Weijun-H Weijun-H closed this as completed Dec 1, 2023
@Weijun-H Weijun-H reopened this Jan 2, 2024
@alamb
Copy link
Contributor

alamb commented Jan 2, 2024

Will be fixed by arrow-rs 50.0

This is tracked by apache/arrow-rs#5234

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
enhancement New feature or request
Projects
None yet
Development

Successfully merging a pull request may close this issue.

2 participants