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https://issues.apache.org/jira/browse/HIVE-13873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15604701#comment-15604701
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Hive QA commented on HIVE-13873:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12835059/HIVE-13873.6.patch
{color:red}ERROR:{color} -1 due to build exiting with an error
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/1782/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/1782/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-1782/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Tests exited with: ExecutionException: java.util.concurrent.ExecutionException:
org.apache.hive.ptest.execution.ssh.SSHExecutionException: RSyncResult
[localFile=/data/hiveptest/logs/PreCommit-HIVE-Build-1782/succeeded/216_UTBatch_itests__hive-unit-hadoop2_5_tests,
remoteFile=/home/hiveptest/104.154.176.70-hiveptest-0/logs/,
getExitCode()=255, getException()=null, getUser()=hiveptest,
getHost()=104.154.176.70, getInstance()=0]: 'ssh: connect to host
104.154.176.70 port 22: Connection refused
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: unexplained error (code 255) at io.c(226) [Receiver=3.1.1]
ssh: connect to host 104.154.176.70 port 22: Connection timed out
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: unexplained error (code 255) at io.c(226) [Receiver=3.1.1]
ssh: connect to host 104.154.176.70 port 22: Connection timed out
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: unexplained error (code 255) at io.c(226) [Receiver=3.1.1]
ssh: connect to host 104.154.176.70 port 22: Connection timed out
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: unexplained error (code 255) at io.c(226) [Receiver=3.1.1]
ssh: connect to host 104.154.176.70 port 22: Connection timed out
rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: unexplained error (code 255) at io.c(226) [Receiver=3.1.1]
'
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12835059 - PreCommit-HIVE-Build
> Column pruning for nested fields
> --------------------------------
>
> Key: HIVE-13873
> URL: https://issues.apache.org/jira/browse/HIVE-13873
> Project: Hive
> Issue Type: New Feature
> Components: Logical Optimizer
> Reporter: Xuefu Zhang
> Assignee: Ferdinand Xu
> Attachments: HIVE-13873.1.patch, HIVE-13873.2.patch,
> HIVE-13873.3.patch, HIVE-13873.4.patch, HIVE-13873.5.patch,
> HIVE-13873.6.patch, HIVE-13873.patch, HIVE-13873.wip.patch
>
>
> Some columnar file formats such as Parquet store fields in struct type also
> column by column using encoding described in Google Dramel pager. It's very
> common in big data where data are stored in structs while queries only needs
> a subset of the the fields in the structs. However, presently Hive still
> needs to read the whole struct regardless whether all fields are selected.
> Therefore, pruning unwanted sub-fields in struct or nested fields at file
> reading time would be a big performance boost for such scenarios.
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