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Nested Schema Pruning Benchmark For Parquet
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OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure
Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz
Selection:                                Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                     72            103          23         13.9          71.8       1.0X
Nested column                                       351            372          22          2.8         351.2       0.2X
Nested column in array                             1563           1664          57          0.6        1563.3       0.0X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure
Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz
Limiting:                                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    380            453          68          2.6         379.8       1.0X
Nested column                                       729            818          70          1.4         728.8       0.5X
Nested column in array                             2161           2404         173          0.5        2160.9       0.2X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure
Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz
Repartitioning:                           Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    315            358          50          3.2         315.2       1.0X
Nested column                                       617            678          40          1.6         616.9       0.5X
Nested column in array                             2032           2149         112          0.5        2031.8       0.2X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure
Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz
Repartitioning by exprs:                  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    306            348          39          3.3         305.6       1.0X
Nested column                                       713            762          40          1.4         713.1       0.4X
Nested column in array                             2364           2452          58          0.4        2364.3       0.1X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure
Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz
Sample:                                   Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    106            143          45          9.4         106.2       1.0X
Nested column                                       427            460          42          2.3         427.3       0.2X
Nested column in array                             1739           1864          91          0.6        1738.8       0.1X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure
Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz
Sorting:                                  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    520            581          39          1.9         519.6       1.0X
Nested column                                       983           1063          71          1.0         983.3       0.5X
Nested column in array                             2538           2687         146          0.4        2538.0       0.2X


