HI ,
You can use prefixfilter class while scan
byte[] prefix = Bytes.toBytes("key"); Scan scan = new Scan();
Filter
prefixFilter = new PrefixFilter(prefix);
scan.setFilter(prefixFilter); ResultScanner resultScanner =
Main_Table.getScanner(scan);
Thanks
Beeshma
On Tue, Nov 24, 2015 at 9:34 AM, beeshma r <[email protected]> wrote:
> HI
>
> You can use prefixfilter class while scan
>
>
>
>
> On Thu, Nov 19, 2015 at 10:25 AM, dheeraj kavalur <
> [email protected]> wrote:
>
>> Hi,
>>
>> Can someone help how to query on partial rowkey.
>>
>> *Table Name :* URLdata
>>
>>
>> *Column Family:* BaseID
>>
>>
>> *Columns:*1. userId
>>
>> 2. userIdType
>>
>> 3. username
>>
>> 4. country
>>
>> *RowKey Design :*
>>
>> userId | useridType|country (Pipe
>> separated
>> columns concatenated)
>>
>>
>> *Requirement*: :
>>
>> ยท Count Distinct
>> (userId| useridType) combination from the table.
>> Have to do partial scan (read ) on the
>> composite rowkey.
>>
>> The count has to been done on Map-side only by
>> reading partial key and actual userid from column in hbase and count the
>> distinct.
>>
>
>
>
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