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Nested Schema Pruning Benchmark For ORC v2
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OpenJDK 64-Bit Server VM 11.0.13+8-LTS 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             93          35         13.4          74.6       1.0X
Nested column                                       511            522          11          2.0         511.2       0.1X
Nested column in array                             2276           2290          23          0.4        2276.3       0.0X

OpenJDK 64-Bit Server VM 11.0.13+8-LTS 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                                    306            344          41          3.3         306.3       1.0X
Nested column                                       735            752          14          1.4         735.4       0.4X
Nested column in array                             2691           2708          20          0.4        2691.0       0.1X

OpenJDK 64-Bit Server VM 11.0.13+8-LTS 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                                    285            306          30          3.5         284.9       1.0X
Nested column                                       718            732          18          1.4         718.3       0.4X
Nested column in array                             2675           2681          10          0.4        2674.6       0.1X

OpenJDK 64-Bit Server VM 11.0.13+8-LTS 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                                    285            295          19          3.5         284.7       1.0X
Nested column                                       749            759          10          1.3         748.6       0.4X
Nested column in array                             2725           2732           5          0.4        2724.5       0.1X

OpenJDK 64-Bit Server VM 11.0.13+8-LTS 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                                     96            125          25         10.4          95.8       1.0X
Nested column                                       519            531          12          1.9         519.4       0.2X
Nested column in array                             2299           2316          26          0.4        2298.7       0.0X

OpenJDK 64-Bit Server VM 11.0.13+8-LTS 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                                    439            451          16          2.3         439.5       1.0X
Nested column                                       919            934          15          1.1         919.0       0.5X
Nested column in array                             3102           3135          75          0.3        3101.6       0.1X


