[PARQUET-836] [C++] Add column selection to parquet::arrow::FileReader

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: cpp-1.0.0
• Component/s: parquet-cpp
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 22/Jan/17 18:19
• Updated: 23/Jun/24 03:28
• Resolved: 24/Jan/17 07:42

Description

With multithreaded reads coming in PARQUET-835, it would be better to push down the subsetting into the FileReader rather than leaving this work at the application level. One artifact of this is the Python interface in Arrow (which handles subsetting in Python/Cython)