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Nested Schema Pruning Benchmark For ORC v2
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OpenJDK 64-Bit Server VM 1.8.0_312-b07 on Linux 5.11.0-1022-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                                     75             81           7         13.3          75.2       1.0X
Nested column                                       437            442           4          2.3         437.1       0.2X
Nested column in array                             2020           2030           6          0.5        2020.2       0.0X

OpenJDK 64-Bit Server VM 1.8.0_312-b07 on Linux 5.11.0-1022-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                                    280            339         127          3.6         280.2       1.0X
Nested column                                       669            686          14          1.5         669.1       0.4X
Nested column in array                             2470           2489          19          0.4        2470.3       0.1X

OpenJDK 64-Bit Server VM 1.8.0_312-b07 on Linux 5.11.0-1022-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                                    275            279           4          3.6         275.0       1.0X
Nested column                                       601            763         402          1.7         600.6       0.5X
Nested column in array                             2449           2458           7          0.4        2448.8       0.1X

OpenJDK 64-Bit Server VM 1.8.0_312-b07 on Linux 5.11.0-1022-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                                    273            276           2          3.7         273.2       1.0X
Nested column                                       607            650          34          1.6         607.4       0.4X
Nested column in array                             2274           2458          94          0.4        2274.0       0.1X

OpenJDK 64-Bit Server VM 1.8.0_312-b07 on Linux 5.11.0-1022-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                                     81            108          20         12.4          80.9       1.0X
Nested column                                       453            460           6          2.2         453.1       0.2X
Nested column in array                             1879           2040          84          0.5        1878.7       0.0X

OpenJDK 64-Bit Server VM 1.8.0_312-b07 on Linux 5.11.0-1022-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                                    409            416           4          2.4         408.7       1.0X
Nested column                                       754            813          41          1.3         754.3       0.5X
Nested column in array                             2499           2695         120          0.4        2499.1       0.2X


