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https://issues.apache.org/jira/browse/IMPALA-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-2454.
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Resolution: Won't Fix
This is a legacy encoding that we likely won't invest more effort into.
> Add more parquet test files that use two-level array encoding
> -------------------------------------------------------------
>
> Key: IMPALA-2454
> URL: https://issues.apache.org/jira/browse/IMPALA-2454
> Project: IMPALA
> Issue Type: Test
> Components: Backend
> Affects Versions: Impala 2.3.0
> Reporter: Skye Wanderman-Milne
> Priority: Minor
> Labels: nested_types, parquet, test
>
> We're lacking coverage of more complicated cases where it's harder to
> disambiguate two- and three-level arrays, e.g. array<struct<struct<int>>.
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