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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (CARBONDATA-37) Support Date/Time format for Timestamp columns to be defined at column level
Date Mon, 24 Oct 2016 01:48:58 GMT


ASF GitHub Bot commented on CARBONDATA-37:

Github user lion-x commented on a diff in the pull request:
    --- Diff: core/src/main/java/org/apache/carbondata/core/keygenerator/directdictionary/timestamp/
    @@ -117,15 +117,24 @@ private TimeStampDirectDictionaryGenerator() {
        * @return dictionary value
       @Override public int generateDirectSurrogateKey(String memberStr) {
    -    SimpleDateFormat timeParser = new SimpleDateFormat(CarbonProperties.getInstance()
    -        .getProperty(CarbonCommonConstants.CARBON_TIMESTAMP_FORMAT,
    -            CarbonCommonConstants.CARBON_TIMESTAMP_DEFAULT_FORMAT));
    +    String timeString;
    --- End diff --
    for 3, provide different date format key generate for different date format is complex,
because the date format style is defined by user freely.

> Support Date/Time format for Timestamp columns to be defined at column level
> ----------------------------------------------------------------------------
>                 Key: CARBONDATA-37
>                 URL:
>             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 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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