You are viewing a plain text version of this content. The canonical link for it is here.

Posted to jira@arrow.apache.org by "Remi Dettai (Jira)" <ji...@apache.org> on 2020/11/16 18:16:00 UTC

[jira] [Created] (ARROW-10620) [Rust][Parquet] move column chunk range logic to metadata.rs

Remi Dettai created ARROW-10620:
-----------------------------------

             Summary: [Rust][Parquet] move column chunk range logic to metadata.rs
                 Key: ARROW-10620
                 URL: https://issues.apache.org/jira/browse/ARROW-10620
             Project: Apache Arrow
          Issue Type: Bug
          Components: Rust
            Reporter: Remi Dettai


Getting the range of bytes of a column chunk inside a parquet file can be useful for external crates (for instance if they want to pre-fetch the columns), and is not completely obvious (it is enough to take a look at [1] and [2] to see that things can quickly get messy). 

I think it would be nice to move this logic in the metadata definition rather than have lost it in the middle of the reader implem. 

[1] https://stackoverflow.com/questions/55225108/why-is-dictionary-page-offset-0-for-plain-dictionary-encoding/
[2] https://issues.apache.org/jira/browse/PARQUET-816



--
This message was sent by Atlassian Jira
(v8.3.4#803005)