How do I extract the first element from Pig's STRSPLIT function?

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how do i access the first element from the results of pig's STRSPLIT function? my pig command looks like the following.

A = FOREACH mydata GENERATE STRSPLIT(myfield,'.',2) as myfield

a value of "myfield" looks like this "john.doe", so STRSPLIT should return ("john","doe"), but i only want the first element ("john" in this case) to be returned as part of the output.

asked 26 secs ago

Jane Wayne

405

How do I extract the first element from Pig's STRSPLIT function?