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https://issues.apache.org/jira/browse/HIVE-2482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13726142#comment-13726142
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Thejas M Nair commented on HIVE-2482:
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[~appodictic] Should we try changing the practice of using .q files everywhere
(at least when alternatives are easy enough/possible)?
The use of .q file gives good test coverage when we do things like change the
query plan, as they are more a 'end-to-end' test rather than a 'unit' test.
Writing the .q file based test is also often the easier thing to do.
But there are few reasons why I think we should avoid them when if it does not
provide additional test coverage -
1. It takes lot longer to run compared to real unit tests
2. They are harder to debug
3. There are high chances that benchmark (q.out) with wrong results get checked
in, as they are generated with '-Doverwrite=true', and the contributor just
eyeballs the results to verify the correctness. With real unit test, expected
results come first (you write them first), before running the tests to verify.
Also, I feel that one is likely to cover more corner cases in the test with
real unit tests.
> Convenience UDFs for binary data type
> -------------------------------------
>
> Key: HIVE-2482
> URL: https://issues.apache.org/jira/browse/HIVE-2482
> Project: Hive
> Issue Type: New Feature
> Affects Versions: 0.9.0
> Reporter: Ashutosh Chauhan
> Assignee: Mark Wagner
> Attachments: HIVE-2482.1.patch
>
>
> HIVE-2380 introduced binary data type in Hive. It will be good to have
> following udfs to make it more useful:
> * UDF's to convert to/from hex string
> * UDF's to convert to/from string using a specific encoding
> * UDF's to convert to/from base64 string
> * UDF's to convert to/from non-string types using a particular serde
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