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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/06/23 10:05:02 UTC

[GitHub] [arrow-rs] tustvold commented on issue #1920: Persisting Arrow timestamps with Parquet produces missing `TIMESTAMP` in schema

tustvold commented on issue #1920:
URL: https://github.com/apache/arrow-rs/issues/1920#issuecomment-1164220176

   Parquet does not have a way to represent timestamps with a base of seconds. As a result if you write timestamps with seconds as a base, it can only embed this information in the arrow schema and not the parquet schema.
   
   See https://github.com/apache/arrow-rs/issues/1666 for more context, and discussion around an optional coerce_types feature that would automatically cast unsupported types for maximum compatibility.


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