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Posted to github@arrow.apache.org by "zeroshade (via GitHub)" <gi...@apache.org> on 2025/10/24 15:17:39 UTC

Re: [I] Cannot read Parquet files with multiple dictionary pages per column chunk [arrow-go]

zeroshade commented on issue #546:
URL: https://github.com/apache/arrow-go/issues/546#issuecomment-3443686856

   According to the Parquet spec, as far as I'm aware, a column chunk is only allowed to have a single dictionary page. Which means that containing multiple dictionary pages in a single column chunk is not a valid Parquet file and if DataFusion is creating a file like that, that's a bug in DataFusion.
   
   @pitrou @wgtmac can either of you confirm for me that I'm not misreading the format and spec?


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