[PIG-1773] Casting docs do not cover casting chararrays

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.8.1
• Assignee: Corinne Chandel
• Reporter: Dmitriy V. Ryaboy
• Created: 16/Dec/10 22:58
• Updated: 25/Apr/11 21:27
• Resolved: 10/Feb/11 22:51

Description

The documentation appears to be out of date in regards to casting chararrays.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)