[ 
https://issues.apache.org/jira/browse/HBASE-10071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13841914#comment-13841914
 ] 

stack commented on HBASE-10071:
-------------------------------

[~cuijianwei] Nice.  What the lads said about it coming in via trunk but, one 
question: this is different from the formatting that is already present?  See 
the scan help in the shell:

{code}
Besides the default 'toStringBinary' format, 'scan' supports custom formatting
by column.  A user can define a FORMATTER by adding it to the column name in
the scan specification.  The FORMATTER can be stipulated:

 1. either as a org.apache.hadoop.hbase.util.Bytes method name (e.g, toInt, 
toString)
 2. or as a custom class followed by method name: e.g. 
'c(MyFormatterClass).format'.

Example formatting cf:qualifier1 and cf:qualifier2 both as Integers:
  hbase> scan 't1', {COLUMNS => ['cf:qualifier1:toInt',
    'cf:qualifier2:c(org.apache.hadoop.hbase.util.Bytes).toInt'] }

Note that you can specify a FORMATTER by column only (cf:qualifer).  You cannot
specify a FORMATTER for all columns of a column family.
{code}

> support data type for get/scan in hbase shell
> ---------------------------------------------
>
>                 Key: HBASE-10071
>                 URL: https://issues.apache.org/jira/browse/HBASE-10071
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>    Affects Versions: 0.94.14
>            Reporter: cuijianwei
>         Attachments: HBASE-10071-0.94-v1.patch
>
>
> Users tend to run hbase shell to query hbase quickly. The result will be 
> shown as binary format which may not look clear enough when users write 
> columns using specified types, such as long/int/short. Therefore, it may be 
> helpful if the results could be shown as specified format. We make a patch to 
> extend get/scan in hbase shell in which user could specify the data type in 
> get/scan for each column as:
> {code}
> scan 'table', {COLUMNS=>['CF:QF:long']}
> get 'table', 'r0', {COLUMN=>'CF:QF:long'}
> {code}
> Then, the result will be shown as Long type. The result of above get will be:
> {code}
> COLUMN                                        CELL                            
>                                                                               
>  
>  CF:QF                                timestamp=24311261, value=24311229
> {code}
> This extended format is compatible with previous format, if users do not 
> specify the data type, the command will also work and output binary format.



--
This message was sent by Atlassian JIRA
(v6.1#6144)

Reply via email to