GitHub user manishgupta88 opened a pull request:

    https://github.com/apache/carbondata/pull/2418

    [WIP] [CARBONDATA-2647] [CARBONDATA-2648] Add support for COLUMN_META_CACHE 
and CACHE_LEVEL in create table and alter table properties

    Things done as part of this PR
    1. Support for configuring COLUMN_META_CACHE in create and alter table set 
properties DDL.
    2. Support for configuring CACHE_LEVEL in create and alter table set 
properties DDL.
    3. Describe formatted display support for COLUMN_META_CACHE and CACHE_LEVEL
    
    **Pending Task:** Adding UT and FT
    
     - [ ] Any interfaces changed?
    
    **Create Table Syntax**
    CREATE TABLE [dbName].tableName (col1 String, col2 String, col3 int,…) 
STORED BY ‘carbondata’ TBLPROPERTIES 
(‘COLUMN_META_CACHE’=’col1,col2,…’, 'CACHE_LEVEL'='BLOCKLET')
    
    **Alter Table set properties Syntax**
    ALTER TABLE [dbName].tableName SET TBLPROPERTIES 
(‘COLUMN_META_CACHE’=’col1,col2,…’, 'CACHE_LEVEL'='BLOCKLET')
    
     - [ ] Any backward compatibility impacted?
    No 
     - [ ] Document update required?
    Yes
     - [ ] Testing done
    Manually verified. UT and FT will be added       
     - [ ] For large changes, please consider breaking it into sub-tasks under 
an umbrella JIRA. 
    NA


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/manishgupta88/carbondata ddl_column_meta_cache

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/carbondata/pull/2418.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2418
    
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commit 29329e50ff732a44571cfccb1f11e784d2882dc5
Author: manishgupta88 <tomanishgupta18@...>
Date:   2018-06-26T14:41:14Z

    Add support for cache level and column meta cache in create and alter DDL

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