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Nested Schema Pruning Benchmark For ORC v2
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OpenJDK 64-Bit Server VM 17.0.5+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
Selection:                                Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                     77             91          11         13.0          77.2       1.0X
Nested column                                       579            591           9          1.7         579.5       0.1X
Nested column in array                             1328           1340          13          0.8        1327.8       0.1X

OpenJDK 64-Bit Server VM 17.0.5+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
Limiting:                                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    413            425          10          2.4         413.2       1.0X
Nested column                                       851            866          13          1.2         850.9       0.5X
Nested column in array                             1726           1755          18          0.6        1725.8       0.2X

OpenJDK 64-Bit Server VM 17.0.5+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
Repartitioning:                           Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    381            396          11          2.6         381.3       1.0X
Nested column                                       829            841           7          1.2         828.8       0.5X
Nested column in array                             1711           1719           8          0.6        1710.6       0.2X

OpenJDK 64-Bit Server VM 17.0.5+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
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                                    381            385           4          2.6         380.6       1.0X
Nested column                                       858            867           6          1.2         858.3       0.4X
Nested column in array                             1758           1769          11          0.6        1758.1       0.2X

OpenJDK 64-Bit Server VM 17.0.5+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
Sample:                                   Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                     83             92          11         12.1          82.5       1.0X
Nested column                                       517            525           4          1.9         517.5       0.2X
Nested column in array                             1342           1360          16          0.7        1341.7       0.1X

OpenJDK 64-Bit Server VM 17.0.5+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz
Sorting:                                  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Top-level column                                    515            543          30          1.9         515.4       1.0X
Nested column                                      1008           1020          13          1.0        1007.5       0.5X
Nested column in array                             2067           2100          79          0.5        2067.2       0.2X


