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from e080766 ARROW-6847: [C++] Add range_expression adapter to Iterator
add 2ce62df ARROW-6876: [C++][Parquet] Use shared_ptr to avoid copying
ReaderContext struct, fix performance regression with reading many columns
No new revisions were added by this update.
Summary of changes:
cpp/src/parquet/arrow/reader.cc | 59 +++++++++++++++++----------------
cpp/src/parquet/arrow/reader_internal.h | 3 +-
python/benchmarks/parquet.py | 23 +++++++++++++
3 files changed, 56 insertions(+), 29 deletions(-)
