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Nested Schema Pruning Benchmark For ORC v1
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OpenJDK 64-Bit Server VM 1.8.0_362-b09 on Linux 5.15.0-1031-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                                    103            124          15          9.7         103.3       1.0X
Nested column                                       119            136          24          8.4         118.9       0.9X
Nested column in array                              377            393          10          2.7         376.8       0.3X

OpenJDK 64-Bit Server VM 1.8.0_362-b09 on Linux 5.15.0-1031-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                                    368            388          14          2.7         368.1       1.0X
Nested column                                       386            410          20          2.6         385.6       1.0X
Nested column in array                              795            859          54          1.3         795.3       0.5X

OpenJDK 64-Bit Server VM 1.8.0_362-b09 on Linux 5.15.0-1031-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                                    343            353           7          2.9         342.7       1.0X
Nested column                                       364            377          14          2.8         363.6       0.9X
Nested column in array                              823            862          24          1.2         822.9       0.4X

OpenJDK 64-Bit Server VM 1.8.0_362-b09 on Linux 5.15.0-1031-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                                    349            355           7          2.9         348.8       1.0X
Nested column                                       395            404           9          2.5         395.2       0.9X
Nested column in array                              896            920          16          1.1         896.2       0.4X

OpenJDK 64-Bit Server VM 1.8.0_362-b09 on Linux 5.15.0-1031-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                                    115            135          16          8.7         114.7       1.0X
Nested column                                       133            155          27          7.5         133.5       0.9X
Nested column in array                              339            416         119          2.9         339.4       0.3X

OpenJDK 64-Bit Server VM 1.8.0_362-b09 on Linux 5.15.0-1031-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                                    568            587          15          1.8         568.2       1.0X
Nested column                                       654            676          19          1.5         653.7       0.9X
Nested column in array                             1135           1182          33          0.9        1135.4       0.5X


