Parquet Thrift/Scrooge uses file schema as requested schema when projection is not specified
- Dominant language
- Java
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Description
Parquet is using file schema as requested schema when projection is not specified.
Instead it should use the schema from the thrift class the user provided.
**Reporter**: [Tim](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=tianshuo) / @tsdeng
**Assignee**: [Tim](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=tianshuo) / @tsdeng
**Note**: *This issue was originally created as [PARQUET-307](https://issues.apache.org/jira/browse/PARQUET-307). 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
No source file, test, or entry point is named. Start by locating the Parquet Thrift/Scrooge projection handling and trace how the requested schema is chosen when no projection is supplied; done when the user-provided thrift class schema is used instead of the file schema.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data-engineering
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100