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Posted to dev@avro.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2010/10/26 22:34:20 UTC
[jira] Resolved: (AVRO-682) Expose the DataFile's metadata entirely
[ https://issues.apache.org/jira/browse/AVRO-682?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Doug Cutting resolved AVRO-682.
-------------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
I just committed this. Thanks, Harsh.
> Expose the DataFile's metadata entirely
> ---------------------------------------
>
> Key: AVRO-682
> URL: https://issues.apache.org/jira/browse/AVRO-682
> Project: Avro
> Issue Type: Improvement
> Components: java
> Affects Versions: 1.4.1
> Environment: Linux, Java 1.6
> Reporter: Harsh J Chouraria
> Assignee: Harsh J Chouraria
> Priority: Minor
> Fix For: 1.5.0
>
> Attachments: avro.metadata.datafile.r1.diff, avro.metadata.datafile.r1.diff, avro.metadata.datafile.r2.diff, avro.metadata.datafile.r3.diff
>
> Original Estimate: 0.02h
> Remaining Estimate: 0.02h
>
> Right now, the DataFileReader (DataFileStream actually) only allows one to query the meta data of a file by issuing a key. A user who does not know what metadata may be stored in the file, has no way to find out by getting a list/map of all there is. Perhaps we should provide a way for the user to retrieve global metadata info to query it back for values.
> Attached a patch (initial) that simply exposes the HashMap that contains the metadata after initialization of the data file reader.
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