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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/08/15 22:05:02 UTC

[GitHub] [arrow-datafusion] comphead commented on pull request #3168: Fix hash join non compat issues

comphead commented on PR #3168:
URL: https://github.com/apache/arrow-datafusion/pull/3168#issuecomment-1215910579

   @alamb I'm trying to create a block that can coerce and cast left and right ArrayRefs returning casted ones. This can be useful in different places where 2 castable but not same datatypes involved. Example `i32` and `i8`. Without cast the downcast_ref will eventually fail on unwrap. I tried to put cast logic to function, but there are many lifetimes limitations in Rust, appreciate if you can help


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