During the course of a problem I'm working on Pig, I generated a transition file the records of which looks like this:
(0131228,-1.9,12.8)
(0131229,12.8,30.4)
(0131230,20.6,32.3)
(0131231,21.0,32.4)
I've typecasted the middle(Max_Temp) and end(Min_Temp) values to double.
B1 = LOAD '/tmp/PigLoadSandstoneData/part-m-00000' USING PigStorage(',') AS (Dated: CHARARRAY, Min_Temp: DOUBLE, Max_Temp: DOUBLE);
I wanted to filter out the result as per a comparison that I'm doing using the statements below:
X = filter B1 by Max_Temp>25.0;
X = filter B1 by Min_Temp<0.0;
I'm not sure why it is throwing the IMPLICIT_CAST_TO_DOUBLE error message as:
grunt> X = filter B1 by (Max_Temp>25.0);
2014-04-08 05:42:58,925 [main] WARN org.apache.pig.PigServer - Encountered Warning IMPLICIT_CAST_TO_DOUBLE 1 time(s).
Can anyone please suggest what wrong I'm doing here? And any solution to this?
Thanks-
Adil