apache / apache/parquet-java

[Vectorized Reader] Support Complex Types (Map, Array, Struct) in Parquet Vectorized Reader

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Component: Java Component: Parquet Priority: Major Type: task
Dominant language
Java
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Description

https://github.com/zhenxiao/incubator-parquet-mr/tree/vector
Has support for primitive types. Needs to support complex types as well

**Reporter**: [Zhenxiao Luo](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=zhenxiao) / @zhenxiao
**Assignee**: [Nezih Yigitbasi](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=nezihyigitbasi) / @nezihyigitbasi
#### PRs and other links:
- [PR-257](https://github.com/apache/parquet-mr/pull/257)

**Note**: *This issue was originally created as [PARQUET-298](https://issues.apache.org/jira/browse/PARQUET-298). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*

Contributor guide

No contributing guide indexed for this repository

Research direction

Start with the vector branch linked in the issue and review the existing primitive-type support. Check PR-257 and the related Parquet vectorized reader changes before determining the remaining work. Done means Map, Array, and Struct types are supported alongside primitive types.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data-engineering
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
20/100

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