Schema errors when using PigStorage and none when using BinStorage??
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Key: PIG-798
URL: https://issues.apache.org/jira/browse/PIG-798
Project: Pig
Issue Type: Bug
Components: impl
Affects Versions: 0.2.0
Reporter: Viraj Bhat
Fix For: 0.2.0
In the following script I have a tab separated text file, which I load using
PigStorage() and store using BinStorage()
{code}
A = load '/user/viraj/visits.txt' using PigStorage() as (name:chararray,
url:chararray, time:chararray);
B = group A by name;
store B into '/user/viraj/binstoragecreateop' using BinStorage();
dump B;
{code}
I later load file 'binstoragecreateop' in the following way.
{code}
A = load '/user/viraj/binstoragecreateop' using BinStorage();
B = foreach A generate $0 as name:chararray;
dump B;
{code}
Result
=======================================================================
(Amy)
(Fred)
=======================================================================
The above code work properly and returns the right results. If I use
PigStorage() to achieve the same, I get the following error.
{code}
A = load '/user/viraj/visits.txt' using PigStorage();
B = foreach A generate $0 as name:chararray;
dump B;
{code}
=======================================================================
2009-05-02 03:58:50,662 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
1022: Type mismatch merging schema prefix. Field Schema: bytearray. Other Field
Schema: name: chararray
Details at logfile: /home/viraj/pig-svn/trunk/pig_1241236728311.log
=======================================================================
So why should the semantics of BinStorage() be different from PigStorage()
where is ok not to specify a schema??? Should it not be consistent across both.
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