[jira] [Updated] (IMPALA-10350) Impala loses double precision

["Zoltán Borók-Nagy (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-10350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltán Borók-Nagy updated IMPALA-10350:
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    Summary: Impala loses double precision  (was: Impala loses double precision on the write side)

> Impala loses double precision
> -----------------------------
>
>                 Key: IMPALA-10350
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10350
>             Project: IMPALA
>          Issue Type: Bug
>            Reporter: Zoltán Borók-Nagy
>            Priority: Major
>
> Reproduction:
>  
> {noformat}
> create table double_tbl (d double) stored as textfile;
> insert into double_tbl values (-0.43149576573887316);
> {noformat}
>  
> $ hdfs dfs -cat /test-warehouse/double_tbl/424097c644088674-c55b910100000000_175064830_data.0.txt
> -0.4314957657388731
> The same happens if we store our data in Parquet.
> Hive writes don't lose precision. Impala also loses precision on the read side even if the data is written by Hive.



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