[jira] [Assigned] (ORC-115) Unable to write string data into ORC file (or at least read it back)

["Owen O'Malley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ORC-115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Owen O'Malley reassigned ORC-115:
---------------------------------

    Assignee: Owen O'Malley

> Unable to write string data into ORC file (or at least read it back)
> --------------------------------------------------------------------
>
>                 Key: ORC-115
>                 URL: https://issues.apache.org/jira/browse/ORC-115
>             Project: Orc
>          Issue Type: Bug
>          Components: Java
>    Affects Versions: 1.2.2
>            Reporter: Scott Wells
>            Assignee: Owen O'Malley
>             Fix For: 1.2.3, 1.3.0
>
>
> I'm trying to create a little utility to convert CSV files into ORC files.  I've noticed that the resulting ORC files don't seem quite correct, though.  In an effort to create a simple reproducible test case, I just changed the "Writing/Reading ORC Files" examples here:
> https://orc.apache.org/docs/core-java.html
> to create a file based on a pair of strings instead of integers.  Basically I changed the loop as follows:
> {code}
>         BytesColumnVector first = (BytesColumnVector) writeBatch.cols[0];
>         BytesColumnVector last = (BytesColumnVector) writeBatch.cols[1];
>         for (int r = 0; r < 10; ++r)
>         {
>             String firstName = ("First-" + r).intern();
>             String lastName = ("Last-" + (r * 3)).intern();
>             ...
>         }
> {code}
> The file writes without errors, and if I write it with no compression, I can see the data using {{strings my-file.orc}}.  However, when I then try to read the data back from the file and print out the resulting batches to the console, I get the following:
> {noformat}
> ["       ", "      "]
> ["       ", "      "]
> ["       ", "      "]
> ["       ", "      "]
> ["       ", "       "]
> ["       ", "       "]
> ["       ", "       "]
> ["       ", "       "]
> ["       ", "       "]
> ["       ", "       "]
> {noformat}
> I've been completely unable to find any documentation or example code that would help me to understand why this isn't working.  Any insights about what I may be doing wrong here would be greatly appreciated!



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