Casting docs do not cover casting chararrays
--------------------------------------------
Key: PIG-1773
URL: https://issues.apache.org/jira/browse/PIG-1773
Project: Pig
Issue Type: Bug
Reporter: Dmitriy V. Ryaboy
The documentation appears to be out of date in regards to casting chararrays.
http://pig.apache.org/docs/r0.7.0/piglatin_ref2.html#Cast+Operators lists
chararray as being uncastable to anything else.
This isn't the case since PIG-893
grunt> x = load 'tmp/numbers' as (a:chararray, b:chararray);
grunt> y = foreach x generate ((long) b) + 1;
grunt> z = foreach y generate (chararray) $0;
grunt> dump y
(2L)
(4L)
(6L)
(3L)
(8L)
grunt> dump z
(2)
(4)
(6)
(3)
(8)
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