[jira] [Commented] (HIVE-10567) partial scan for rcfile table doesn't work for dynamic partition

[Bing Li (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HIVE-10567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16094519#comment-16094519
 ] 

Bing Li commented on HIVE-10567:
--------------------------------

Hi, [~ashutoshc]
The fix doesn't affect because the variable partitions is empty.

{code:java}
      case DYNAMIC_PARTITION:
        for (Partition 
dynPart:tableScanOp.getConf().getTableMetadata().getTableSpec().partitions) {
          inputPaths.add(dynPart.getDataLocation());
        }
        break;
{code}

The "partitions" is set in Hive.getPartitionsByNames().

{code:java}
  public List<Partition> getPartitionsByNames(Table tbl,
      Map<String, String> partialPartSpec)
      throws HiveException {

    if (!tbl.isPartitioned()) {
      throw new HiveException(ErrorMsg.TABLE_NOT_PARTITIONED, 
tbl.getTableName());
    }

   // the size of names is 0;
    List<String> names = getPartitionNames(tbl.getDbName(), tbl.getTableName(),
        partialPartSpec, (short)-1);

    List<Partition> partitions = getPartitionsByNames(tbl, names);
    return partitions;
  }
{code}



 

> partial scan for rcfile table doesn't work for dynamic partition
> ----------------------------------------------------------------
>
>                 Key: HIVE-10567
>                 URL: https://issues.apache.org/jira/browse/HIVE-10567
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>    Affects Versions: 0.14.0, 1.0.0
>            Reporter: Thomas Friedrich
>            Assignee: Thomas Friedrich
>            Priority: Minor
>              Labels: rcfile
>         Attachments: HIVE-10567.1.patch
>
>
> HIVE-3958 added support for partial scan for RCFile. This works fine for 
> static partitions (for example: analyze table analyze_srcpart_partial_scan 
> PARTITION(ds='2008-04-08',hr=11) compute statistics partialscan).
> For dynamic partition, the analyze files with an IOException 
> "java.io.IOException: No input paths specified in job":
> hive> ANALYZE TABLE testtable PARTITION(col_varchar) COMPUTE STATISTICS 
> PARTIALSCAN;
> java.io.IOException: No input paths specified in job
>         at 
> org.apache.hadoop.hive.ql.io.HiveInputFormat.getInputPaths(HiveInputFormat.java:318)
>         at 
> org.apache.hadoop.hive.ql.io.CombineHiveInputFormat.getSplits(CombineHiveInputFormat.java:459)
>         at 
> org.apache.hadoop.mapreduce.JobSubmitter.writeOldSplits(JobSubmitter.java:624)
>         at 
> org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:616)
>         at 
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:492)



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