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HBase, mail # user - [ANNOUNCE] Phoenix 1.2 is now available


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Re: [ANNOUNCE] Phoenix 1.2 is now available
James Taylor 2013-05-16, 23:15
Hi Anil,
No HBase changes were required. We're already leveraging coprocessors in
HBase which is a key enabler. The other pieces needed are:
- a type system
- a means to evaluate an ORDER BY expression on the server
- memory tracking/throttling (the topN for each region are held in
memory until the client does a merge sort)
Phoenix has all these, so it was just a matter of packaging them up to
support this.

Thanks,
James

On 05/16/2013 02:02 PM, anil gupta wrote:
> Hi James,
>
> You have mentioned support for TopN query. Can you provide me HBase Jira
> ticket for that. I am also doing similar stuff in
> https://issues.apache.org/jira/browse/HBASE-7474. I am interested in
> knowing the details about that implementation.
>
> Thanks,
> Anil Gupta
>
>
> On Thu, May 16, 2013 at 12:29 PM, James Taylor <[EMAIL PROTECTED]>wrote:
>
>> We are pleased to announce the immediate availability of Phoenix 1.2 (
>> https://github.com/**forcedotcom/phoenix/wiki/**Download<https://github.com/forcedotcom/phoenix/wiki/Download>).
>> Here are some of the release highlights:
>>
>> * Improve performance of multi-point and multi-range queries (20x plus)
>> using new skip scan
>> * Support TopN queries (3-70x faster than Hive)
>> * Control row key order when defining primary key columns
>> * Salt tables declaratively to prevent hot spotting
>> * Specify columns dynamically at query time
>> * Write Phoenix-compliant HFiles from Pig scripts and Map/Reduce jobs
>> * Support SELECT DISTINCT
>> * Leverage essential column family feature
>> * Bundle command line terminal interface
>> * Specify scale and precision on decimal type
>> * Support fixed length binary type
>> * Add TO_CHAR, TO_NUMBER, COALESCE, UPPER, LOWER, and REVERSE built-in
>> functions
>>
>> HBase 0.94.4 or above is required with HBase 0.94.7 being recommended. For
>> more detail, please see our announcement: http://phoenix-hbase.blogspot.**
>> com/2013/05/announcing-**phoenix-12.html<http://phoenix-hbase.blogspot.com/2013/05/announcing-phoenix-12.html>
>>
>> Regards,
>>
>> James
>> @JamesPlusPlus
>> http://phoenix-hbase.blogspot.**com/ <http://phoenix-hbase.blogspot.com/>
>>
>
>