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Nested Schema Pruning Benchmark For ORC v2
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OpenJDK 64-Bit Server VM 17.0.1+12-LTS on Linux 5.11.0-1022-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                                     94            103           6         10.6          94.4       1.0X
Nested column                                       480            494          11          2.1         479.7       0.2X
Nested column in array                             2048           2093          28          0.5        2048.4       0.0X

OpenJDK 64-Bit Server VM 17.0.1+12-LTS on Linux 5.11.0-1022-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                                    533            556          18          1.9         533.4       1.0X
Nested column                                       947            972          18          1.1         947.0       0.6X
Nested column in array                             2893           2912          17          0.3        2892.7       0.2X

OpenJDK 64-Bit Server VM 17.0.1+12-LTS on Linux 5.11.0-1022-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                                    517            532          10          1.9         517.3       1.0X
Nested column                                       931            945          11          1.1         930.5       0.6X
Nested column in array                             2858           2905          43          0.3        2858.2       0.2X

OpenJDK 64-Bit Server VM 17.0.1+12-LTS on Linux 5.11.0-1022-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                                    508            522           7          2.0         508.4       1.0X
Nested column                                       978            999          19          1.0         978.4       0.5X
Nested column in array                             2967           3068          74          0.3        2967.3       0.2X

OpenJDK 64-Bit Server VM 17.0.1+12-LTS on Linux 5.11.0-1022-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                                    129            161          22          7.7         129.5       1.0X
Nested column                                       490            499          10          2.0         489.5       0.3X
Nested column in array                             2072           2112          30          0.5        2072.0       0.1X

OpenJDK 64-Bit Server VM 17.0.1+12-LTS on Linux 5.11.0-1022-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                                    846            894          33          1.2         845.9       1.0X
Nested column                                      1332           1391          37          0.8        1331.7       0.6X
Nested column in array                             3388           3464         112          0.3        3387.8       0.2X


