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From "Slava Gorelik" <slava.gore...@gmail.com>
Subject Re: Unique constraint
Date Fri, 19 Dec 2008 05:09:30 GMT
I see, Thank You.

On Fri, Dec 19, 2008 at 12:31 AM, stack <stack@duboce.net> wrote:

> We need to flatten 6 last issues:
> https://issues.apache.org/jira/secure/IssueNavigator.jspa?reset=true&mode=hide&sorter/order=DESC&sorter/field=priority&resolution=-1&pid=12310753&fixfor=12313364(That
list should probably include HBASE-900 too).  Then we can roll a
> Release Candidate.  Would be great if we could get it done in time for XMas
> but looks like it might be the new year by the time we run through a few
> RCs.
>
>
> St.Ack
>
>
> Slava Gorelik wrote:
>
>> Thank You, btw, when 0.19 should be out ?
>>
>> On Thu, Dec 18, 2008 at 11:02 PM, stack <stack@duboce.net> wrote:
>>
>>
>>
>>> It is.  Look under regionserver and client packages.   There is a client
>>> and server component.  See
>>> org.apache.hadoop.hbase.client.tableindexed.package.html for some
>>> documentation.
>>> St.Ack
>>>
>>>
>>> Slava Gorelik wrote:
>>>
>>>
>>>
>>>> Thank You, the tableindex package in 0.19 ?
>>>>
>>>> On Thu, Dec 18, 2008 at 7:21 PM, Clint Morgan <clint.morgan@troove.net
>>>>
>>>>
>>>>> wrote:
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>> You could maintain an index, and then use the index to jump right to
>>>>> rows
>>>>> for the column value(s) in question. See the tableindexed package for
>>>>> more
>>>>> info..
>>>>>
>>>>> cheers,
>>>>> -clint
>>>>>
>>>>> On Thu, Dec 18, 2008 at 4:37 AM, Slava Gorelik <
>>>>> slava.gorelik@gmail.com
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> wrote:
>>>>>>     Hi.I'm trying to implement Unique constraint on some column,
but
>>>>>> it
>>>>>> looks
>>>>>> like there no other solution than to scan all data.
>>>>>> This solution is problematic from the performance perspective. Is
it
>>>>>> possible to implement this in the better way ?
>>>>>>
>>>>>> Best Regards.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>>
>>
>>
>>
>
>

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