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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CARBONDATA-37) Support Date/Time format for Timestamp columns to be defined at column level
Date Wed, 26 Oct 2016 02:46:00 GMT

    [ https://issues.apache.org/jira/browse/CARBONDATA-37?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15607197#comment-15607197
] 

ASF GitHub Bot commented on CARBONDATA-37:
------------------------------------------

Github user QiangCai commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/219#discussion_r85040702
  
    --- Diff: processing/src/test/java/org/apache/carbondata/core/keygenerator/directdictionary/timestamp/TimeStampDirectDictionaryGeneratorTest.java
---
    @@ -37,7 +37,7 @@
       private int surrogateKey = -1;
     
       @Before public void setUp() throws Exception {
    -    TimeStampDirectDictionaryGenerator generator = TimeStampDirectDictionaryGenerator.instance;
    +    TimeStampDirectDictionaryGenerator generator = new TimeStampDirectDictionaryGenerator(CarbonCommonConstants.CARBON_TIMESTAMP_DEFAULT_FORMAT);
    --- End diff --
    
    Should use carbon property to  create generator, not default value.
    please correct all.


> Support Date/Time format for Timestamp columns to be defined at column level
> ----------------------------------------------------------------------------
>
>                 Key: CARBONDATA-37
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-37
>             Project: CarbonData
>          Issue Type: Improvement
>            Reporter: Vimal Das Kammath
>            Assignee: Lionx
>
> Carbon support defining the Date/Time format. But the configuration for the same is present
in carbon.properties and hence is global for all tables.
> This global configuration for timestamp format cannot support scenarios where different
tables or different Timestamp columns in the same table.
> Suggest to provide option in the create table DDL itself to define the format for each
Timestamp column. Also provide defaults so that users can create table with Timestamp columns
without having to always define the Date/Time format.



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