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https://issues.apache.org/jira/browse/CARBONDATA-307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jacky Li updated CARBONDATA-307:
--------------------------------
    Description: 
Currently, there are two read path in carbon-spark module: 
1. CarbonContext => CarbonDatasourceRelation => CarbonScanRDD => QueryExecutor
In this case, CarbonScanRDD uses CarbonInputFormat to get the split, and use 
QueryExecutor for scan.

2. SqlContext => CarbonDatasourceHadoopRelation => CarbonHadoopFSRDD => 
CarbonRecordReader => QueryExecutor
In this case, CarbonHadoopFSRDD uses CarbonInputFormat to do both get split and 
scan

Because of this, there are unnecessary duplicate code, they need to be unified.


  was:
Currently, there are two read path in carbon-spark module: 
1. CarbonContext => CarbonDatasourceRelation => CarbonScanRDD => QueryExecutor
In this case, CarbonScanRDD uses CarbonInputFormat to get the split, and use 
QueryExecutor for scan.

2. SqlContext => CarbonDatasourceHadoopRelation => CarbonHadoopFSRDD => 
CarbonRecordReader
In this case, CarbonHadoopFSRDD uses CarbonInputFormat to do both get split and 
scan

Because of this, there are unnecessary duplicate code, they need to be unified.



> Support executor side scan using CarbonInputFormat
> --------------------------------------------------
>
>                 Key: CARBONDATA-307
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-307
>             Project: CarbonData
>          Issue Type: Improvement
>          Components: spark-integration
>    Affects Versions: 0.1.0-incubating
>            Reporter: Jacky Li
>             Fix For: 0.2.0-incubating
>
>
> Currently, there are two read path in carbon-spark module: 
> 1. CarbonContext => CarbonDatasourceRelation => CarbonScanRDD => QueryExecutor
> In this case, CarbonScanRDD uses CarbonInputFormat to get the split, and use 
> QueryExecutor for scan.
> 2. SqlContext => CarbonDatasourceHadoopRelation => CarbonHadoopFSRDD => 
> CarbonRecordReader => QueryExecutor
> In this case, CarbonHadoopFSRDD uses CarbonInputFormat to do both get split 
> and scan
> Because of this, there are unnecessary duplicate code, they need to be 
> unified.



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