• Direct support for dictionaries (unifying dictionaries or building a new dictionary as necessary)
• Fixed-length list
• Union, struct, list, other variable-width types

Reporter: David Li / @lidavidm
Assignee: David Li / @lidavidm

Related issues:

• [C++] Coalesce kernel missing support for list/struct types (is duplicated by)
• [C++] Add a "coalesce" variadic scalar kernel (relates to)
• [C++] choose kernel missing support for list/struct types (is related to)
• [C++] replace_with_mask support missing for list/fixed_size_list/large_list/struct (is related to)
• [C++] Reconcile type promotion rules between if_else, case_when, coalesce, select (is related to)
• [C++] Extend type support for if_else kernel (is related to)
• [C++] Support dictionaries directly in coalesce kernel (is related to)
• [C++] Improve type support for 'replace_with_mask' kernel (is related to)

PRs and other links:

• GitHub Pull Request #11080

_{Note: This issue was originally created as ARROW-13390. Please see the migration documentation for further details.}