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From "Viraj Bhat (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-1031) PigStorage interpreting chararray/bytearray for a tuple element inside a bag as float or double
Date Tue, 20 Oct 2009 23:13:59 GMT

     [ https://issues.apache.org/jira/browse/PIG-1031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Viraj Bhat updated PIG-1031:
----------------------------

    Description: 
I have a data stored in a text file as:

{(4153E765)}
{(AF533765)}


I try reading it using PigStorage as:

{code}
A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term:bytearray)});
dump A;
{code}

I get the following results:


({(Infinity)})
({(AF533765)})


The problem seems to be with the method: parseFromBytes(byte[] b) in class Utf8StorageConverter.
This method uses the TextDataParser (class generated via jjt) to interpret the type of data
from content, even though the schema tells it is a bytearray. 

TextDataParser.jjt  sample code
{code}
TOKEN :
{
...
 < DOUBLENUMBER: (["-","+"])? <FLOATINGPOINT> ( ["e","E"] ([ "-","+"])? <FLOATINGPOINT>
)?>
 < FLOATNUMBER: <DOUBLENUMBER> (["f","F"])? >
...
}
{code}

I tried the following options, but it will not work as we need to call bytesToBag(byte[] b)
in the Utf8StorageConverter class.
{code}
A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term)});
A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term:chararray)});
{code}


Viraj

  was:
I have a data stored in a text file as:

{(4153E765)}
{(AF533765)}

I try reading it using PigStorage as:
{code}
A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term:bytearray)});
dump A;
{code}

I get the following results:

{code}
({(Infinity)})
({(AF533765)})
{code}

The problem seems to be with the method: parseFromBytes(byte[] b) in class Utf8StorageConverter.
This method uses the TextDataParser (class generated via jjt) to interpret the type of data
from content, even though the schema tells it is a bytearray. 

TextDataParser.jjt  sample code
{code}
TOKEN :
{
...
 < DOUBLENUMBER: (["-","+"])? <FLOATINGPOINT> ( ["e","E"] ([ "-","+"])? <FLOATINGPOINT>
)?>
 < FLOATNUMBER: <DOUBLENUMBER> (["f","F"])? >
...
}
{code}

I tried the following options, but it will not work as we need to call bytesToBag(byte[] b)
in the Utf8StorageConverter class.
{code}
A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term)});
A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term:chararray)});
{code}


Viraj


> PigStorage interpreting chararray/bytearray for a tuple element inside a bag as float
or double
> -----------------------------------------------------------------------------------------------
>
>                 Key: PIG-1031
>                 URL: https://issues.apache.org/jira/browse/PIG-1031
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.5.0
>            Reporter: Viraj Bhat
>             Fix For: 0.5.0, 0.6.0
>
>
> I have a data stored in a text file as:
> {(4153E765)}
> {(AF533765)}
> I try reading it using PigStorage as:
> {code}
> A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term:bytearray)});
> dump A;
> {code}
> I get the following results:
> ({(Infinity)})
> ({(AF533765)})
> The problem seems to be with the method: parseFromBytes(byte[] b) in class Utf8StorageConverter.
This method uses the TextDataParser (class generated via jjt) to interpret the type of data
from content, even though the schema tells it is a bytearray. 
> TextDataParser.jjt  sample code
> {code}
> TOKEN :
> {
> ...
>  < DOUBLENUMBER: (["-","+"])? <FLOATINGPOINT> ( ["e","E"] ([ "-","+"])? <FLOATINGPOINT>
)?>
>  < FLOATNUMBER: <DOUBLENUMBER> (["f","F"])? >
> ...
> }
> {code}
> I tried the following options, but it will not work as we need to call bytesToBag(byte[]
b) in the Utf8StorageConverter class.
> {code}
> A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term)});
> A = load 'pigstoragebroken.dat' using PigStorage() as (intersectionBag:bag{T:tuple(term:chararray)});
> {code}
> Viraj

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