[jira] [Created] (CARBONDATA-1489) Stabilize Array DataType Support

["Venkata Ramana G (JIRA)" <ji...@apache.org>]

Venkata Ramana G created CARBONDATA-1489:
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             Summary: Stabilize Array DataType Support
                 Key: CARBONDATA-1489
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1489
             Project: CarbonData
          Issue Type: Bug
          Components: core, sql
    Affects Versions: 1.1.1
            Reporter: Venkata Ramana G


Stabilize Array DataType Support. This is umbrella jira to track all related tasks.
Following cases needs to  be handled:

||Sub feature||Pending activity||Remarks||
|query, filter, NULL values, UDFs, Describe support|Test + Fix|Implementation in place needs to add test-cases and bug fix|
|Compaction support | Test + fix | As compaction works at byte level, no changes required. Needs to add test-cases|
|Insert into table| Develop | Source table data containing Array data needs to convert from spark datatype to string , as carbon takes string as input row |
|Support DDL for Array fields Dictionary include and Dictionary Exclude | Develop | Also needs to handle CarbonDictionaryDecoder  to handle the same. |
|Support multilevel Array | Develop | currently DDL is validated to allow only 2 levels, remove this restriction|
|Support Array value to be a measure | Develop | Currently supports only dimensions |
|Support Alter table to add and remove Array column | Develop | implement DDL and requires default value handling |
|Projections of Array values push down to carbon | Develop | this is an optimization, when more number of values are present in Array |
|Filter Array values push down to carbon | Develop | this is an optimization, when more number of values are present in Array |
|Update Array values | Develop | update array value|



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