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Posted to issues@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/09/23 17:21:00 UTC
[jira] [Created] (ARROW-14105) [C++] Reconcile type promotion rules
between if_else, case_when, coalesce, select
David Li created ARROW-14105:
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Summary: [C++] Reconcile type promotion rules between if_else, case_when, coalesce, select
Key: ARROW-14105
URL: https://issues.apache.org/jira/browse/ARROW-14105
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: David Li
Assignee: David Li
These functions are all conceptually similar and need to promote argument types to a common type. Right now they all have different type promotion heuristics, and there are a few in-progress PRs to improve type support; once those land, we should also reconcile the type promotion logic they use - presumably, all of them should be able to use the exact same logic in the end.
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