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Posted to dev@hive.apache.org by "Gunther Hagleitner (JIRA)" <ji...@apache.org> on 2013/02/22 10:32:15 UTC
[jira] [Updated] (HIVE-3820) Consider creating a literal like "D"
or "BD" for representing Decimal type constants
[ https://issues.apache.org/jira/browse/HIVE-3820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gunther Hagleitner updated HIVE-3820:
-------------------------------------
Attachment: HIVE-3820.1.patch
> Consider creating a literal like "D" or "BD" for representing Decimal type constants
> ------------------------------------------------------------------------------------
>
> Key: HIVE-3820
> URL: https://issues.apache.org/jira/browse/HIVE-3820
> Project: Hive
> Issue Type: Bug
> Reporter: Mark Grover
> Attachments: HIVE-3820.1.patch, HIVE-3820.D8823.1.patch
>
>
> When the HIVE-2693 gets committed, users are going to see this behavior:
> {code}
> hive> select cast(3.14 as decimal) from decimal_3 limit 1;
> 3.140000000000000124344978758017532527446746826171875
> {code}
> That's intuitively incorrect but is the case because 3.14 (double) is being converted to BigDecimal because of which there is a precision mismatch.
> We should consider creating a new literal for expressing constants of Decimal type as Gunther suggested in HIVE-2693.
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