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https://issues.apache.org/jira/browse/HIVE-4896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13753954#comment-13753954
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Eugene Koifman commented on HIVE-4896:
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with core and hcatalog-pig-adapter under org.apache.hcatalog brought from 0.11
1 test fails:
TestSemanticAnalysis#testAddReplaceCols()
Failure expected:<0> but was:<1>
junit.framework.AssertionFailedError: expected:<0> but was:<1>
at
org.apache.hcatalog.cli.TestSemanticAnalysis.testAddReplaceCols(TestSemanticAnalysis.java:212)
The reason is that for RCFILE the default in 0.12 is LazyBinaryColumnarSerDe
(hive.default.rcfile.serde) which doesn't allow updating columns.
> create binary backwards compatibility layer hcatalog 0.12 and 0.11
> ------------------------------------------------------------------
>
> Key: HIVE-4896
> URL: https://issues.apache.org/jira/browse/HIVE-4896
> Project: Hive
> Issue Type: Sub-task
> Components: HCatalog
> Affects Versions: 0.12.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Fix For: 0.12.0
>
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> 1. create a 011 dir in each HCat submodule to hold these classes
> 2. update build to place these classes into jars
> 3. figure out how to test this
> The goal is for users who were using public API (e.g. HCatLoader) in their
> programs to be able to upgrade to hive 0.12 and have their programs still
> work without change.
> The compatibility layer will have a sunset clause to be removed in 2 releases.
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