incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Abhijit Chanda <abhijit.chan...@gmail.com>
Subject Re: Composite Column
Date Thu, 17 May 2012 06:59:20 GMT
Samal,

Thanks buddy for interpreting. Now suppose i am inserting data in a column
family using this data model dynamically, as a result columnNames will be
dynamic. Now consider there is a entry for *employee1* *name*d "Smith", and
i want to retrieve that value?

Regards,
Abhijit

On Thu, May 17, 2012 at 12:03 PM, samal <samalgorai@gmail.com> wrote:

> It is like using your super column inside columns name.
>
> empKey{
>   employee1+name:XXXXXX,
>   employee1+addr:XXXXX,
>   employee2+name:XXXXX,
>   employee2+addr:XXXXX
> }
>
> Here all of your employee details are attached to one domain i.e. all of
> employee1 details will be *"employee1+[anytihng.........n numbers of
> column]"*
>
> comaprator=CompositeType(UTF8Type1,UTF8Type2,.......,n)
>
> /Samal
>
> On Thu, May 17, 2012 at 10:40 AM, Abhijit Chanda <
> abhijit.chanda0@gmail.com> wrote:
>
>> Aaron,
>>
>> Actually Aaron i am looking for a scenario on super columns being
>> replaced by composite column.
>> Say this is a data model using super column
>> rowKey{
>>           superKey1 {
>>                                 Name,
>>                                 Address,
>>                                 City,.....
>>                           }
>> }
>>
>> Actually i am having confusion how exactly the data model will look if we
>> use composite column instead of super column.
>>
>> Thanks,
>> Abhijit
>>
>>
>>
>> On Wed, May 16, 2012 at 2:56 PM, aaron morton <aaron@thelastpickle.com>wrote:
>>
>>> Abhijit,
>>> Can you explain the data model a bit more.
>>>
>>> Cheers
>>>
>>>   -----------------
>>> Aaron Morton
>>> Freelance Developer
>>> @aaronmorton
>>> http://www.thelastpickle.com
>>>
>>> On 15/05/2012, at 10:32 PM, samal wrote:
>>>
>>> It is just column with JSON value
>>>
>>> On Tue, May 15, 2012 at 4:00 PM, samal <samalgorai@gmail.com> wrote:
>>>
>>>> I have not used CC but yes you can.
>>>> Below is not composite column. It is not not column with JSON hash
>>>> value. Column value can be anything you like.
>>>> date inside value are not indexed.
>>>>
>>>>
>>>> On Tue, May 15, 2012 at 9:27 AM, Abhijit Chanda <
>>>> abhijit.chanda0@gmail.com> wrote:
>>>>
>>>>> Is it possible to create this data model with the help of composite
>>>>> column.
>>>>>
>>>>> User_Keys_By_Last_Name = {
>>>>>   "Engineering" : {"anderson", 1 : "ac1263", "anderson", 2 : "724f02",
... },
>>>>>   "Sales" : { "adams", 1 : "b32704", "alden", 1 : "1553bd", ... },
>>>>> }
>>>>>
>>>>> I am using Astyanax. Please suggest...
>>>>> --
>>>>> Abhijit Chanda
>>>>> Software Developer
>>>>> VeHere Interactive Pvt. Ltd.
>>>>> +91-9748888395
>>>>>
>>>>>
>>>>
>>>
>>>
>>
>>
>> --
>> Abhijit Chanda
>> Software Developer
>> VeHere Interactive Pvt. Ltd.
>> +91-9748888395
>>
>>
>


-- 
Abhijit Chanda
Software Developer
VeHere Interactive Pvt. Ltd.
+91-9748888395

Mime
View raw message