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Nested Schema Pruning Benchmark For ORC v1
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OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-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                                     82            129          39         12.2          82.2       1.0X
Nested column                                       462            490          23          2.2         461.7       0.2X
Nested column in array                             2051           2140          74          0.5        2051.2       0.0X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-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                                    387            418          36          2.6         387.2       1.0X
Nested column                                       702            754          41          1.4         702.3       0.6X
Nested column in array                             2320           2511         108          0.4        2320.4       0.2X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-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                                    314            363          46          3.2         313.6       1.0X
Nested column                                       663            712          25          1.5         663.2       0.5X
Nested column in array                             2174           2278          65          0.5        2174.3       0.1X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-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                                    271            312          45          3.7         270.7       1.0X
Nested column                                       664            695          30          1.5         663.6       0.4X
Nested column in array                             2228           2331          88          0.4        2227.8       0.1X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-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                                     99            138          57         10.1          99.5       1.0X
Nested column                                       395            424          28          2.5         395.4       0.3X
Nested column in array                             1734           1779          36          0.6        1733.6       0.1X

OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-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                                    458            521          55          2.2         458.0       1.0X
Nested column                                       818            879          43          1.2         817.5       0.6X
Nested column in array                             2388           2528          95          0.4        2388.0       0.2X


