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https://issues.apache.org/jira/browse/SPARK-21661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dapeng Sun updated SPARK-21661:
-------------------------------
Description:
Here is the original text of external table on HDFS：
{noformat}
Permission Owner Group Size Last Modified Replication Block
Size Name
-rw-r--r-- root supergroup 0 B 8/6/2017, 11:43:03 PM 3
256 MB income_band_001.dat
-rw-r--r-- root supergroup 0 B 8/6/2017, 11:39:31 PM 3
256 MB income_band_002.dat
...
-rw-r--r-- root supergroup 327 B 8/6/2017, 11:44:47 PM 3
256 MB income_band_530.dat
{noformat}
After SparkSQL load, every files have a output file, even the files are 0B. For
the load on Hive, the data files would be merged according the data size of
original files.
was:
Here is the original text of external table on HDFS：
{noformat}
Permission Owner Group Size Last Modified Replication Block
Size Name
-rw-r--r-- root supergroup 0 B 8/6/2017, 11:43:03 PM 3
256 MB income_band_001.dat
-rw-r--r-- root supergroup 0 B 8/6/2017, 11:39:31 PM 3
256 MB income_band_002.dat
...
-rw-r--r-- root supergroup 327 B 8/6/2017, 11:44:47 PM 3
256 MB income_band_530.dat
{noformat}
After SparkSQL load, each files have a output, even the files are 0B. For the
load on Hive, the data files would be merged according the data size of
original files.
> SparkSQL can't merge load table from Hadoop
> -------------------------------------------
>
> Key: SPARK-21661
> URL: https://issues.apache.org/jira/browse/SPARK-21661
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Dapeng Sun
>
> Here is the original text of external table on HDFS：
> {noformat}
> Permission Owner Group Size Last Modified Replication Block
> Size Name
> -rw-r--r-- root supergroup 0 B 8/6/2017, 11:43:03 PM 3
> 256 MB income_band_001.dat
> -rw-r--r-- root supergroup 0 B 8/6/2017, 11:39:31 PM 3
> 256 MB income_band_002.dat
> ...
> -rw-r--r-- root supergroup 327 B 8/6/2017, 11:44:47 PM 3
> 256 MB income_band_530.dat
> {noformat}
> After SparkSQL load, every files have a output file, even the files are 0B.
> For the load on Hive, the data files would be merged according the data size
> of original files.
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