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]>
> 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?