[PARQUET-762] C++: Use optimistic allocation instead of Arrow Builders

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: cpp-1.0.0
• Component/s: parquet-avro
• Assignee: Uwe Korn
• Reporter: Uwe Korn
• Created: 03/Nov/16 10:51
• Updated: 06/Nov/16 19:35
• Resolved: 06/Nov/16 19:35

Description

Instead of using the Arrow builders, optimistically allocate buffers to avoid unncessary memcpys. This should bring us a significant performance improvement.