The documentation page called "Pig Latin Basics" at
http://pig.apache.org/docs/r0.9.2/basic.html
has three occurrences of "INNER" in upper case.
 From these three occurrences it seems that INNER is a keyword and it
can be
used in COGROUP.  However the syntax does not mention INNER and the example
of its use does not clarify what the semantics of this keyword are.
Can anyone explain it or point to a place in the documentation that I
missed?
Thanks.

Fred Zemke
--
Oracle <http://www.oracle.com>
Fred Zemke | SQL standards representative
Phone: +1 6505062051 <tel:+1%206505062051>

Green Oracle <http://www.oracle.com/commitment> Oracle is committed to
developing practices and products that help protect the environment

in GROUP/COGROUP the INNER keyword is used to ensure that only bags with at least one tuple are returned.

older doc has 2 examples:
http://pig.apache.org/docs/r0.8.1/piglatin_ref2.html#GROUP
would have been helpful if Pig team retained above details into 0.9.x (& onwards) docs! :)

a;
>________________________________
> From: fred zemke <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Sent: Thursday, 26 April 2012 12:55 AM
>Subject: keyword INNER
>
>
>The documentation page called "Pig Latin Basics" at
>http://pig.apache.org/docs/r0.9.2/basic.html
>has three occurrences of "INNER" in upper case.
>From these three occurrences it seems that INNER is a keyword and it
    can be
>used in COGROUP.  However the syntax does not mention INNER and the
    example
>of its use does not clarify what the semantics of this keyword are. 
>Can anyone explain it or point to a place in the documentation that
    I missed?
>Thanks.
>
>Fred Zemke
>
>--
>
>Fred Zemke | SQL standards representative
>Phone: +1 6505062051
>
> Oracle is committed to developing practices and products that help protect the environment
>
>

They were removed together with the functionality. Use a post-filter.

https://issues.apache.org/jira/browse/PIG-1584

D

On Thu, Apr 26, 2012 at 9:59 AM, Ashish Gite <[EMAIL PROTECTED]> wrote:

> in GROUP/COGROUP the INNER keyword is used to ensure that only bags with
> at least one tuple are returned.
>
> older doc has 2 examples:
> http://pig.apache.org/docs/r0.8.1/piglatin_ref2.html#GROUP
>
> would have been helpful if Pig team retained above details into 0.9.x (&
> onwards) docs! :)
>
> a;
>
>
>   ------------------------------
> *From:* fred zemke <[EMAIL PROTECTED]>
> *To:* [EMAIL PROTECTED]
> *Sent:* Thursday, 26 April 2012 12:55 AM
> *Subject:* keyword INNER
>
>  The documentation page called "Pig Latin Basics" at
> http://pig.apache.org/docs/r0.9.2/basic.html
> has three occurrences of "INNER" in upper case.
> From these three occurrences it seems that INNER is a keyword and it can
> be
> used in COGROUP.  However the syntax does not mention INNER and the example
> of its use does not clarify what the semantics of this keyword are.
> Can anyone explain it or point to a place in the documentation that I
> missed?
> Thanks.
>
> Fred Zemke
> --
> [image: Oracle] <http://www.oracle.com>
> Fred Zemke | SQL standards representative
> Phone: +1 6505062051
>
> [image: Green Oracle] <http://www.oracle.com/commitment> Oracle is
> committed to developing practices and products that help protect the
> environment
>
>
>