Can you share your pig script here?
I was seeing issues using the following:
a = LOAD ‘stocks’ using org.apache.hcatalog.pig.HCatLoader();
b = filter a by stock_symbol == ‘IBM’;
c = group b all;
d = foreach c generate AVG(b.stock_volume);
If I don’t have the dump d; at the end then it runs fine.
I’m just interested if you are seeing the same?
Have you tested this in the grunt shell – as my pig scripts have no issues there but in Hue it seems to have some issue.