[jira] [Resolved] (DRILL-7797) Decimals are wrongly read from parquet files

["Jan Soubusta (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-7797?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jan Soubusta resolved DRILL-7797.
---------------------------------
    Resolution: Fixed

Don't know, what you did, but it is fixed, I verified it on TPCH data stored in Minio in PARQUET format, decimals are no longer corrupted

> Decimals are wrongly read from parquet files
> --------------------------------------------
>
>                 Key: DRILL-7797
>                 URL: https://issues.apache.org/jira/browse/DRILL-7797
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - Parquet
>    Affects Versions: 1.18.0
>            Reporter: Jan Soubusta
>            Priority: Major
>
> My setup:
> Docker embedded Drill 1.18 (latest).
> Parquet decimals are wrongly read by Drill, wrong huge / negative values are displayed.
> Example small public file: 
> [https://gdc-tiger-test-data-eu-central.s3.eu-central-1.amazonaws.com/other_files/tpch/supplier.parquet/a51ab8fd-v_verticadb_node0001-140644911675136-0.parquet]
> The file was exported from Vertica database using EXPORT TO PARQUET statement.
> My colleague utilizes his parquet reader written in C++ and this is his comment:
> {quote}
> 6th column S_ACCTBAL has type FIXED_LEN_BYTE_ARRAY and convertedType DECIMAL with scale 2 and precision 15.
> I would say, that it is correctly conforming specification.
> {quote}
>  



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