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https://issues.apache.org/jira/browse/ARROW-3769?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney moved PARQUET-1423 to ARROW-3769:
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Fix Version/s: (was: cpp-1.6.0)
0.13.0
Component/s: (was: parquet-cpp)
C++
Workflow: jira (was: patch-available, re-open possible)
Key: ARROW-3769 (was: PARQUET-1423)
Project: Apache Arrow (was: Parquet)
> [C++] Support reading non-dictionary encoded binary Parquet columns directly
> as DictionaryArray
> -----------------------------------------------------------------------------------------------
>
> Key: ARROW-3769
> URL: https://issues.apache.org/jira/browse/ARROW-3769
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Labels: parquet
> Fix For: 0.13.0
>
>
> If the goal is to hash this data anyway into a categorical-type array, then
> it would be better to offer the option to "push down" the hashing into the
> Parquet read hot path rather than first fully materializing a dense vector of
> {{ByteArray}} values, which could use a lot of memory after decompression
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