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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-1272) Add SymlinkTextInputFormat to Hive
Date Wed, 20 Oct 2010 04:47:29 GMT

     [ https://issues.apache.org/jira/browse/HIVE-1272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carl Steinbach updated HIVE-1272:
---------------------------------

          Component/s: Query Processor
                       Metastore
    Affects Version/s:     (was: 0.5.0)
         Release Note:   (was: HIVE-1272. Add SymlinkTextInputFormat to Hive. (Guanghao Shen
via zshao) )

> Add SymlinkTextInputFormat to Hive
> ----------------------------------
>
>                 Key: HIVE-1272
>                 URL: https://issues.apache.org/jira/browse/HIVE-1272
>             Project: Hive
>          Issue Type: New Feature
>          Components: Metastore, Query Processor
>            Reporter: Zheng Shao
>            Assignee: Guanghao Shen
>             Fix For: 0.6.0
>
>         Attachments: HIVE-1272.1.patch, HIVE-1272.2.patch
>
>
> We'd like to add a symlink text input format so that we can specify the list of files
for a table/partition based on the content of a text file.
> For example, the location of the table is "/user/hive/mytable".
> There is a file called "/user/hive/mytable/myfile.txt".
> Inside the file, there are 2 lines, "/user/myname/textfile1.txt" and "/user/myname/textfile2.txt"
> We can do:
> {code}
> CREATE TABLE mytable (...) STORED AS INPUTFORMAT 'org.apache.hadoop.hive.io.SymlinkTextInputFormat'
LOCATION '/user/hive/mytable';
> SELECT * FROM mytable;
> {code}
> which will return the content of the 2 files: "/user/myname/textfile1.txt" and "/user/myname/textfile2.txt"

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