Hi all,

I have a problem where I need to limit the number of results generated by
pig script based on some condition.

say,
 if ( $x == 0 )
  then do not limit #results
 else:
   limited_result = LIMIT results $x ;

(here x comes from cmd line)

How can I achieve this with a single Pig script ?

Thanks in advance,
Souri

Here's a trick I used:

Together with $x, pass in another parameter $comment that's either ''
(blank) when x>0 or '--' (double dashes) when x==0. Then

result = SOME OPERATION
$comment result = LIMIT result $x

On Sun, Mar 27, 2011 at 12:36 PM, souri datta <[EMAIL PROTECTED]>wrote:

> Hi all,
>
> I have a problem where I need to limit the number of results generated by
> pig script based on some condition.
>
> say,
>  if ( $x == 0 )
>  then do not limit #results
>  else:
>   limited_result = LIMIT results $x ;
>
> (here x comes from cmd line)
>
> How can I achieve this with a single Pig script ?
>
> Thanks in advance,
> Souri
>

thanks! its cool :)

On Mon, Mar 28, 2011 at 2:40 AM, Dexin Wang <[EMAIL PROTECTED]> wrote:

> Here's a trick I used:
>
> Together with $x, pass in another parameter $comment that's either ''
> (blank) when x>0 or '--' (double dashes) when x==0. Then
>
> result = SOME OPERATION
> $comment result = LIMIT result $x
>
>
> On Sun, Mar 27, 2011 at 12:36 PM, souri datta <[EMAIL PROTECTED]>wrote:
>
>> Hi all,
>>
>> I have a problem where I need to limit the number of results generated by
>> pig script based on some condition.
>>
>> say,
>>  if ( $x == 0 )
>>  then do not limit #results
>>  else:
>>   limited_result = LIMIT results $x ;
>>
>> (here x comes from cmd line)
>>
>> How can I achieve this with a single Pig script ?
>>
>> Thanks in advance,
>> Souri
>>
>
>