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https://issues.apache.org/jira/browse/ARROW-10226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Grove closed ARROW-10226.
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    Resolution: Fixed

Although Spark produces the correct result when I run an aggregate query 
against this parquet file, it too shows bad values when I just query the 
l_returnflag column so it appears that the files are corrupt and Spark skips 
the bad rows when building the aggregate? I will keep looking into this but I 
no longer think this is a bug that we need to spend time on.

 

fyi [~jorgecarleitao]

> [Rust] [Parquet] Parquet reader reading wrong columns in some batches within 
> a parquet file
> -------------------------------------------------------------------------------------------
>
>                 Key: ARROW-10226
>                 URL: https://issues.apache.org/jira/browse/ARROW-10226
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Rust, Rust - DataFusion
>            Reporter: Andy Grove
>            Assignee: Andy Grove
>            Priority: Major
>             Fix For: 2.0.0
>
>
> I re-installed my desktop a few days ago (now using Ubuntu 20.04 LTS)  and 
> when I try and run the TPC-H benchmark, it never completes and eventually 
> uses up all 64 GB RAM.
> I can run Spark against the data  set and the query completes in 24 seconds, 
> which IIRC is how long it took before.
> It is possible that something is odd on my environment, but it is also 
> possible/likely that this is a real bug.
> I am investigating this and will update the Jira once I know more.
> I also went back to old commits that were working for me before and they show 
> the same issue so I don't think this is related to a recent code change.



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