[Vectorized Reader] Lazy Load in Vectorized Reader
- Dominant language
- Java
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Description
don’t read column data until required
**Reporter**: [Zhenxiao Luo](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=zhenxiao) / @zhenxiao
**Note**: *This issue was originally created as [PARQUET-301](https://issues.apache.org/jira/browse/PARQUET-301). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*
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Research direction
The issue names the Vectorized Reader and states that column data should not be read until required. Start by locating the Vectorized Reader implementation and reading the linked PARQUET-301 migration context; done means required columns are loaded lazily without changing reader behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100