GH-48561: [C++][Parquet] Optimize column reader by fusing definition level decoding with counting - #51109

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Shockp:gh-48561-fuse-definition-level-count

Commits on Aug 31, 2026

GH-48561: [C++] Add decode-and-count support to RLE decoders
Shockp
committed
adf3344
GH-48561: [C++][Parquet] Fuse definition level decoding and counting
Shockp
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21dd44b
GH-48561: [C++][Parquet] Add decode-and-count benchmarks
Shockp
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9e4a871