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From "Edward Yoon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1720) [HbaseShell] Addition of HQL (Hbase Query Language) support in Hbase Shell
Date Wed, 22 Aug 2007 09:00:30 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Edward Yoon updated HADOOP-1720:
--------------------------------

    Attachment: hql_v05.patch

I edited the select syntax.

{code}
HBase > select inColor:, length: from movieLog_table;
+------+----------------------+----------------------+----------------------+
| No.  | Row                  | Column               | Cell                 |
+------+----------------------+----------------------+----------------------+
| 1    | Mighty Ducks         | inColor:             | true                 |
+------+----------------------+----------------------+----------------------+
| 1    | Mighty Ducks         | length:              | 124                  |
+------+----------------------+----------------------+----------------------+
| 2    | Star Wars            | inColor:             | true                 |
+------+----------------------+----------------------+----------------------+
| 2    | Star Wars            | length:              | 124                  |
+------+----------------------+----------------------+----------------------+
| 3    | Wayne`s World        | inColor:             | true                 |
+------+----------------------+----------------------+----------------------+
| 3    | Wayne`s World        | length:              | 95                   |
+------+----------------------+----------------------+----------------------+

Successfully print out the selected data.(0.02 sec)
HBase > select * from movieLog_table starting from 'Star Wars';
+------+----------------------+----------------------+----------------------+
| No.  | Row                  | Column               | Cell                 |
+------+----------------------+----------------------+----------------------+
| 1    | Star Wars            | inColor:             | true                 |
+------+----------------------+----------------------+----------------------+
| 1    | Star Wars            | length:              | 124                  |
+------+----------------------+----------------------+----------------------+
| 1    | Star Wars            | producer:            | George Lucas         |
+------+----------------------+----------------------+----------------------+
| 1    | Star Wars            | studioName:          | Fox                  |
+------+----------------------+----------------------+----------------------+
| 1    | Star Wars            | vote:user_1          | 5                    |
+------+----------------------+----------------------+----------------------+
| 1    | Star Wars            | year:                | 1977                 |
+------+----------------------+----------------------+----------------------+
| 2    | Wayne`s World        | inColor:             | true                 |
+------+----------------------+----------------------+----------------------+
| 2    | Wayne`s World        | length:              | 95                   |
+------+----------------------+----------------------+----------------------+
| 2    | Wayne`s World        | producer:            | Penelope Spheeris    |
+------+----------------------+----------------------+----------------------+
| 2    | Wayne`s World        | studioName:          | Paramount            |
+------+----------------------+----------------------+----------------------+
| 2    | Wayne`s World        | vote:user_1          | 3                    |
+------+----------------------+----------------------+----------------------+
| 2    | Wayne`s World        | year:                | 1992                 |
+------+----------------------+----------------------+----------------------+

Successfully print out the selected data.(0.01 sec)
HBase > exit;
{code}

> [HbaseShell] Addition of HQL (Hbase Query Language) support in Hbase Shell
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-1720
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1720
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.15.0
>         Environment: all environments
>            Reporter: Inchul Song
>            Priority: Minor
>             Fix For: 0.15.0
>
>         Attachments: hql_v01.patch, hql_v02.patch, hql_v03.patch, hql_v04.patch, hql_v05.patch
>
>
> We have defined the HQL (Hbase Query Language), which is a "more" SQL-like query language
for Hbase, for use in Hbase Shell. HQL is not intended to fully support the SQL syntax and
semantics. HQL, instead, is developed to make it easy to manipulate tables in Hbase through
the Hbase Shell command line, without using programming APIs.
> You can find more information about HQL in http://wiki.apache.org/lucene-hadoop/Hbase/HbaseShell/HQL.

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