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Posted to user@pig.apache.org by yo...@wipro.com on 2012/09/19 22:26:15 UTC

How Select the top records

Hi all,

I have run the script. and dump it .

1.) Bcount = foreach Bgroup generate group, COUNT(Btop) as number ;

2.) Border = order Bcount by number desc;

3.) Dump Border ;

and the its Output is like.

(10.100.195.16,48)
(208.82.124.93,31)
(210.172.234.116,9)
(192.223.163.5,6)
(108.28.16.81,4)
(125.16.95.11,4)
(202.46.23.55,4)
(203.129.242.34,4)
(115.112.233.75,4)
(204.4.131.140,3)
(134.159.168.105,3)
(70.178.1.235,3)
(31.178.7.2,2)
(67.195.111.170,2)
(209.85.224.91,1)
(66.249.72.105,1)
(68.225.229.67,1)


Now I want the records whose count(Btop) as number is greater than 3.
{(last coloum of each row )like here number are in desending order 49, 31, 9, 6, 4, 4, 4, 3 ...  etc }

How to get these records.
 Please suggest

Thanks & regards
Yogesh Kumar





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RE: How Select the top records

Posted by wi...@thomsonreuters.com.
Maybe use FILTER(): http://pig.apache.org/docs/r0.8.1/piglatin_ref2.html#FILTER

William F Dowling
Senior Technologist
Thomson Reuters

-----Original Message-----
From: yogesh.kumar13@wipro.com [mailto:yogesh.kumar13@wipro.com] 
Sent: Wednesday, September 19, 2012 4:26 PM
To: user@pig.apache.org
Subject: How Select the top records
Importance: High

Hi all,

I have run the script. and dump it .

1.) Bcount = foreach Bgroup generate group, COUNT(Btop) as number ;

2.) Border = order Bcount by number desc;

3.) Dump Border ;

and the its Output is like.

(10.100.195.16,48)
(208.82.124.93,31)
(210.172.234.116,9)
(192.223.163.5,6)
(108.28.16.81,4)
(125.16.95.11,4)
(202.46.23.55,4)
(203.129.242.34,4)
(115.112.233.75,4)
(204.4.131.140,3)
(134.159.168.105,3)
(70.178.1.235,3)
(31.178.7.2,2)
(67.195.111.170,2)
(209.85.224.91,1)
(66.249.72.105,1)
(68.225.229.67,1)


Now I want the records whose count(Btop) as number is greater than 3.
{(last coloum of each row )like here number are in desending order 49, 31, 9, 6, 4, 4, 4, 3 ...  etc }

How to get these records.
 Please suggest

Thanks & regards
Yogesh Kumar

Re: How Select the top records

Posted by Srini <pi...@gmail.com>.
-- >  Bcount = foreach Bgroup generate group, COUNT(Btop) as number ;
--> Output= FILTER Bcount by number > 3;
--> DUMP Output;

On Wed, Sep 19, 2012 at 1:26 PM, <yo...@wipro.com> wrote:

> Hi all,
>
> I have run the script. and dump it .
>
> 1.) Bcount = foreach Bgroup generate group, COUNT(Btop) as number ;
>
> 2.) Border = order Bcount by number desc;
>
> 3.) Dump Border ;
>
> and the its Output is like.
>
> (10.100.195.16,48)
> (208.82.124.93,31)
> (210.172.234.116,9)
> (192.223.163.5,6)
> (108.28.16.81,4)
> (125.16.95.11,4)
> (202.46.23.55,4)
> (203.129.242.34,4)
> (115.112.233.75,4)
> (204.4.131.140,3)
> (134.159.168.105,3)
> (70.178.1.235,3)
> (31.178.7.2,2)
> (67.195.111.170,2)
> (209.85.224.91,1)
> (66.249.72.105,1)
> (68.225.229.67,1)
>
>
> Now I want the records whose count(Btop) as number is greater than 3.
> {(last coloum of each row )like here number are in desending order 49, 31,
> 9, 6, 4, 4, 4, 3 ...  etc }
>
> How to get these records.
>  Please suggest
>
> Thanks & regards
> Yogesh Kumar
>
>
>
>
>
> Please do not print this email unless it is absolutely necessary.
>
> The information contained in this electronic message and any attachments
> to this message are intended for the exclusive use of the addressee(s) and
> may contain proprietary, confidential or privileged information. If you are
> not the intended recipient, you should not disseminate, distribute or copy
> this e-mail. Please notify the sender immediately and destroy all copies of
> this message and any attachments.
>
> WARNING: Computer viruses can be transmitted via email. The recipient
> should check this email and any attachments for the presence of viruses.
> The company accepts no liability for any damage caused by any virus
> transmitted by this email.
>
> www.wipro.com
>