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Posted to github@arrow.apache.org by "albertlockett (via GitHub)" <gi...@apache.org> on 2025/08/05 16:31:33 UTC

Re: [I] [parquet] further improve logical type compatibility in `ArrowWriter` [arrow-rs]

albertlockett commented on issue #8012:
URL: https://github.com/apache/arrow-rs/issues/8012#issuecomment-3155832683

   We should also extend this to allow compatibility between: `Dictionary<T1,_>` and `Dictionary<T2, _>`. The current logic only allows compatibility between `Dictionary<T1, V1>` and `V1` (e.g. between dict & native):
   https://github.com/apache/arrow-rs/blob/2418c59efa50edfd456dcc042e2bf84692398745/parquet/src/arrow/arrow_writer/levels.rs#L552-L563
   


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