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https://issues.apache.org/jira/browse/HIVE-11802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15345410#comment-15345410
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Sergey Shelukhin commented on HIVE-11802:
-----------------------------------------
Backported both commits to 1.3 and 1.2.2
> 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: 1.3.0, 2.0.0, 1.2.2
>
> 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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