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https://issues.apache.org/jira/browse/HIVE-28673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-28673 started by Araika Singh.
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> Fix issues in JSON SerDe implementations related to Decimal
> -----------------------------------------------------------
>
> Key: HIVE-28673
> URL: https://issues.apache.org/jira/browse/HIVE-28673
> Project: Hive
> Issue Type: Bug
> Reporter: Araika Singh
> Assignee: Araika Singh
> Priority: Major
>
> Decimal values that are inserted by user are not interpreted correctly. This
> can lead to data issues for users needing decimal precision to a certain
> point.
> +*Steps to reproduce:*+
> {code:java}
> // json text value for some reference {"decimalcol1" : -9999999999999999.99,
> "decimalcol2" : 9999999999999999.99, "decimalcol3" :
> 1000000000000000000000000000000000000.00, "decimalcol4" : 99.999 ,
> "decimalcol5" : 1e39}
> create table json_serde (
> decimalcol1 decimal(18,2),
> decimalcol2 decimal(38,2),
> decimalcol3 decimal(38,2),
> decimalcol4 decimal(18,2),
> decimalcol5 decimal(38,2))
> row format serde 'org.apache.hadoop.hive.serde2.JsonSerDe';
> INSERT INTO TABLE json_serde VALUES (-9999999999999999.99,
> 9999999999999999.99, 1000000000000000000000000000000000000.00, 99.999, 1e39);
> OR
> LOAD DATA LOCAL INPATH 'path/to/json.txt' into table json_serde;
> select * from json_serde;{code}
> +*Output:*+
> {noformat}
> +--------------+-----------------------+--------------+--------------+--------------+
> | decimalcol1 | decimalcol2 | decimalcol3 | decimalcol4 |
> decimalcol5 |
> +--------------+-----------------------+--------------+--------------+--------------+
> | NULL | 10000000000000000.00 | NULL | 100.00 | NULL
> |
> +--------------+-----------------------+--------------+--------------+--------------+{noformat}
> The above behaviour should not happen.
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