Hi,

I am trying to do some tasks with 'if else' inside the pig
script, specifically, if the folder exists, we do some statements and join
the data into some table, otherwise, just ignore this step.
How can I do this in pig?

Thanks,

Sheng

In pure Pig, you wouldn't do something like this. However, PIg supports
control flow in Python (I really should get on making the JRuby wrapper,
but I digress). You can find docs for this on the pig website. Basically
the control flow is in Python, and you launch jobs from there.
2012/11/19 Sheng Guo <[EMAIL PROTECTED]>

> Hi,
>
> I am trying to do some tasks with 'if else' inside the pig
> script, specifically, if the folder exists, we do some statements and join
> the data into some table, otherwise, just ignore this step.
> How can I do this in pig?
>
> Thanks,
>
> Sheng
>

On a different context, I was once stuck with the same problem but was able
to navigate this using bincond operator.
http://ofps.oreilly.com/titles/9781449302641/intro_pig_latin.html
Not sure, how you would hack in here.. but i have a feeling it can be
pulled off.
On Mon, Nov 19, 2012 at 8:49 PM, Jonathan Coveney <[EMAIL PROTECTED]>wrote:

> In pure Pig, you wouldn't do something like this. However, PIg supports
> control flow in Python (I really should get on making the JRuby wrapper,
> but I digress). You can find docs for this on the pig website. Basically
> the control flow is in Python, and you launch jobs from there.
>
>
> 2012/11/19 Sheng Guo <[EMAIL PROTECTED]>
>
> > Hi,
> >
> > I am trying to do some tasks with 'if else' inside the pig
> > script, specifically, if the folder exists, we do some statements and
> join
> > the data into some table, otherwise, just ignore this step.
> > How can I do this in pig?
> >
> > Thanks,
> >
> > Sheng
> >
>