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Nested Schema Pruning Benchmark For ORC v2
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OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
Selection:                                Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                     95            117          15         10.5          94.9       1.0X
Nested column                                        94            102           9         10.6          94.5       1.0X
Nested column in array                              222            233          14          4.5         221.7       0.4X

OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
Limiting:                                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    398            420          15          2.5         397.8       1.0X
Nested column                                       406            422          13          2.5         406.2       1.0X
Nested column in array                              723            756          35          1.4         722.5       0.6X

OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
Repartitioning:                           Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    378            388           8          2.6         377.6       1.0X
Nested column                                       384            393          11          2.6         383.6       1.0X
Nested column in array                              676            681           4          1.5         675.6       0.6X

OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
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                                    374            385           8          2.7         374.2       1.0X
Nested column                                       410            418           5          2.4         410.4       0.9X
Nested column in array                              726            732           4          1.4         726.4       0.5X

OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
Sample:                                   Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    102            117          12          9.8         101.5       1.0X
Nested column                                       113            127          17          8.9         112.7       0.9X
Nested column in array                              294            340          68          3.4         294.4       0.3X

OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
Sorting:                                  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    542            564          25          1.8         541.8       1.0X
Nested column                                       575            605          33          1.7         575.5       0.9X
Nested column in array                              995           1034          58          1.0         994.6       0.5X


