[PARQUET-2204] TypedColumnReaderImpl::Skip should reuse scratch space

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: cpp-11.0.0
• Component/s: parquet-cpp
• Labels: pull-request-available
• Assignee: fatemah
• Reporter: fatemah
• Created: 25/Oct/22 23:04
• Updated: 23/Jun/24 03:32
• Resolved: 08/Dec/22 15:42

Description

TypedColumnReaderImpl::Skip allocates scratch space on every call. The scratch space is used to read rep/def levels and values and throw them away. The memory allocation slows down the skip based on microbenchmarks. The scratch space can be allocated once and re-used.

Issue Links

• links to: GitHub Pull Request #14509