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https://issues.apache.org/jira/browse/IMPALA-6503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16735923#comment-16735923
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Quanlong Huang commented on IMPALA-6503:
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I spent a lot of time fixing my implementation due to some wrong assumptions
about the descriptors. However, I still make one assumption: 'col_path' of the
SlotDescriptor won't map to a STRUCT column. It will point directly to a
primitive/collection column. Please give me cases if I'm wrong.
Patch ready for review: [https://gerrit.cloudera.org/#/c/12168/]
Doc about the patch:
[https://docs.google.com/document/d/10Gzcge57VUOQ0ZQWfWiIW9cUix8_FumMewl0Gja3ZA4]
Have passed the pre-review-test:
[https://jenkins.impala.io/job/pre-review-test/269/]
> Support reading complex types from ORC format files
> ---------------------------------------------------
>
> Key: IMPALA-6503
> URL: https://issues.apache.org/jira/browse/IMPALA-6503
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend, Frontend
> Reporter: Quanlong Huang
> Assignee: Quanlong Huang
> Priority: Major
>
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