[
https://issues.apache.org/jira/browse/HADOOP-4183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Namit Jain resolved HADOOP-4183.
--------------------------------
Resolution: Fixed
Fix Version/s: 0.19.0
fixed as part of JIRA-4230
> select * to console issues in Hive
> ----------------------------------
>
> Key: HADOOP-4183
> URL: https://issues.apache.org/jira/browse/HADOOP-4183
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/hive
> Reporter: Joydeep Sen Sarma
> Fix For: 0.19.0
>
>
> the biggest problem is that select * is assuming that the output is a regular
> text file. it can't read out from compressed text files. (which is what
> happens when we start using the output compression options).
> the core issue is that select * is special code. and it should not be. it
> should go through the same 'fileinputformat' and serde code that any map-side
> task goes through.
> the second issue is that a select * without any data transformations/filters
> goes through a map-reduce task unnecessarily. we need to fix this. this seems
> related to the limit N jira that ashish opened. (see hadoop-4086)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
