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Posted to issues@hive.apache.org by "lijp (JIRA)" <ji...@apache.org> on 2016/01/11 10:36:39 UTC
[jira] [Assigned] (HIVE-11802) Float-point numbers are displayed
with different precision in Beeline/JDBC
[ https://issues.apache.org/jira/browse/HIVE-11802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
lijp reassigned HIVE-11802:
---------------------------
Assignee: lijp (was: Sergio Peña)
> Float-point numbers are displayed with different precision in Beeline/JDBC
> --------------------------------------------------------------------------
>
> Key: HIVE-11802
> URL: https://issues.apache.org/jira/browse/HIVE-11802
> Project: Hive
> Issue Type: Bug
> Affects Versions: 1.2.1
> Reporter: Sergio Peña
> Assignee: lijp
> Fix For: 2.0.0
>
> Attachments: HIVE-11802.3.patch
>
>
> When inserting float-point numbers to a table, the values displayed on beeline or jdbc are with different precision.
> How to reproduce:
> {noformat}
> 0: jdbc:hive2://localhost:10000> create table decimals (f float, af array<float>, d double, ad array<double>) stored as parquet;
> No rows affected (0.294 seconds)
> 0: jdbc:hive2://localhost:10000> insert into table decimals select 1.10058, array(cast(1.10058 as float)), 2.0133, array(2.0133) from dummy limit 1;
> ...
> No rows affected (20.089 seconds)
> 0: jdbc:hive2://localhost:10000> select f, af, af[0], d, ad[0] from decimals;
> +---------------------+------------+---------------------+---------+---------+--+
> | f | af | _c2 | d | _c4 |
> +---------------------+------------+---------------------+---------+---------+--+
> | 1.1005799770355225 | [1.10058] | 1.1005799770355225 | 2.0133 | 2.0133 |
> +---------------------+------------+---------------------+---------+---------+--+
> {noformat}
> When displaying arrays, the values are displayed correctly, but if I print a specific element, it is then displayed with more decimal positions.
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