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https://issues.apache.org/jira/browse/HIVE-3682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13831773#comment-13831773
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Sushanth Sowmyan commented on HIVE-3682:
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[~caofangkun] : Thanks for bringing that up, apologies for not noticing it till
now, I'll add it in to the wiki.
[~vratnagiri] : Well, for writing out to hdfs, there already exists a way to do
this, and that is to write out to a new table at that location. What was
lacking was the ability to be able to support a write to a local directory with
the features that exist for a hdfs write, and therefore, this was added.
Basically, you can do a CREATE TABLE with whatever format you want, at an
appropriate hdfs location, and then do an INSERT OVERWRITE into that table with
the results of whatever SELECT you desire. :)
> when output hive table to file,users should could have a separator of their
> own choice
> --------------------------------------------------------------------------------------
>
> Key: HIVE-3682
> URL: https://issues.apache.org/jira/browse/HIVE-3682
> Project: Hive
> Issue Type: New Feature
> Components: CLI
> Affects Versions: 0.8.1
> Environment: Linux 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21
> 20:34:47 UTC 2011 i686 i686 i386 GNU/Linux
> java version "1.6.0_25"
> hadoop-0.20.2-cdh3u0
> hive-0.8.1
> Reporter: caofangkun
> Assignee: Sushanth Sowmyan
> Fix For: 0.11.0
>
> Attachments: HIVE-3682-1.patch, HIVE-3682.D10275.1.patch,
> HIVE-3682.D10275.2.patch, HIVE-3682.D10275.3.patch, HIVE-3682.D10275.4.patch,
> HIVE-3682.D10275.4.patch.for.0.11, HIVE-3682.with.serde.patch
>
>
> By default,when output hive table to file ,columns of the Hive table are
> separated by ^A character (that is \001).
> But indeed users should have the right to set a seperator of their own choice.
> Usage Example:
> create table for_test (key string, value string);
> load data local inpath './in1.txt' into table for_test
> select * from for_test;
> UT-01：default separator is \001 line separator is \n
> insert overwrite local directory './test-01'
> select * from src ;
> create table array_table (a array<string>, b array<string>)
> ROW FORMAT DELIMITED
> FIELDS TERMINATED BY '\t'
> COLLECTION ITEMS TERMINATED BY ',';
> load data local inpath "../hive/examples/files/arraytest.txt" overwrite into
> table table2;
> CREATE TABLE map_table (foo STRING , bar MAP<STRING, STRING>)
> ROW FORMAT DELIMITED
> FIELDS TERMINATED BY '\t'
> COLLECTION ITEMS TERMINATED BY ','
> MAP KEYS TERMINATED BY ':'
> STORED AS TEXTFILE;
> UT-02：defined field separator as ':'
> insert overwrite local directory './test-02'
> row format delimited
> FIELDS TERMINATED BY ':'
> select * from src ;
> UT-03: line separator DO NOT ALLOWED to define as other separator
> insert overwrite local directory './test-03'
> row format delimited
> FIELDS TERMINATED BY ':'
> select * from src ;
> UT-04: define map separators
> insert overwrite local directory './test-04'
> row format delimited
> FIELDS TERMINATED BY '\t'
> COLLECTION ITEMS TERMINATED BY ','
> MAP KEYS TERMINATED BY ':'
> select * from src;
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