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Posted to dev@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2014/05/19 20:52:39 UTC
[jira] [Commented] (HIVE-5814) Add DATE, TIMESTAMP, DECIMAL, CHAR,
VARCHAR types support in HCat
[ https://issues.apache.org/jira/browse/HIVE-5814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14002163#comment-14002163 ]
Eugene Koifman commented on HIVE-5814:
--------------------------------------
org.apache.hcatalog.pig.HCatLoader has been deprecated in Hive 0.12.
In fact every class in org.apache.hcatalog has been deprecated. All new features are added in org.apache.hive.hcatalog which contains all the classes/methods from org.apache.hcatalog and new APIs.
> Add DATE, TIMESTAMP, DECIMAL, CHAR, VARCHAR types support in HCat
> -----------------------------------------------------------------
>
> Key: HIVE-5814
> URL: https://issues.apache.org/jira/browse/HIVE-5814
> Project: Hive
> Issue Type: New Feature
> Components: HCatalog
> Affects Versions: 0.12.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Fix For: 0.13.0
>
> Attachments: HCat-Pig Type Mapping Hive 0.13.pdf, HIVE-5814.2.patch, HIVE-5814.3.patch, HIVE-5814.4.patch, HIVE-5814.5.patch
>
>
> Hive 0.12 added support for new data types. Pig 0.12 added some as well. HCat should handle these as well. Also note that CHAR was added recently.
> Also allow user to specify a parameter in Pig like so HCatStorer('','', '-onOutOfRangeValue Throw') to control what happens when Pig's value is out of range for target Hive column. Valid values for the option are Throw and Null. Throw - make the runtime raise an exception, Null, which is the default, means NULL is written to target column and a message to that effect is emitted to the log. Only 1 message per column/data type is sent to the log.
> See attached HCat-Pig Type Mapping Hive 0.13.pdf for exact mappings.
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