Tried loading a file in pig but this comesup everytime.Warning IMPLICIT_CAST_TO_FLOAT 2 time(s)

0
votes

I am learning pig latin and this error keeps coming up.

command: m = LOAD '/assignment/movies.csv' USING PigStorage(',')AS(id:int,name:chararray,year:int,rating:float,duration:int);

error msgs: 2021-01-11 21:10:44,303 [main] INFO org.apache.hadoop.conf.Configuration.deprecation - mapred.job.tracker is deprecated. Instead, use mapreduce.jobtracker.address 2021-01-11 21:10:44,304 [main] INFO org.apache.hadoop.conf.Configuration.deprecation - fs.default.name is deprecated. Instead, use fs.defaultFS 2021-01-11 21:10:44,310 [main] WARN org.apache.pig.newplan.BaseOperatorPlan - Encountered Warning IMPLICIT_CAST_TO_FLOAT 2 time(s).

1
apache-pig

1 Answers

0
votes

These are just warnings, not errors, so your script will complete.

You could compare the effect of loading rating in as e.g. chararray and then using an explicit cast in a FOREACH:

cast_rating = FOREACH m GENERATE
    id..year,
    (float)rating AS rating,
    duration;