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Nested Schema Pruning Benchmark For ORC v2
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OpenJDK 64-Bit Server VM 1.8.0_352-b08 on Linux 5.15.0-1023-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                                     82             92           8         12.2          82.0       1.0X
Nested column                                       453            466          14          2.2         452.9       0.2X
Nested column in array                             1149           1156           7          0.9        1148.6       0.1X

OpenJDK 64-Bit Server VM 1.8.0_352-b08 on Linux 5.15.0-1023-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                                    294            307          12          3.4         293.5       1.0X
Nested column                                       603            615           9          1.7         602.6       0.5X
Nested column in array                             1553           1578          25          0.6        1553.0       0.2X

OpenJDK 64-Bit Server VM 1.8.0_352-b08 on Linux 5.15.0-1023-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                                    271            274           2          3.7         270.9       1.0X
Nested column                                       583            590           6          1.7         582.9       0.5X
Nested column in array                             1530           1544           8          0.7        1530.5       0.2X

OpenJDK 64-Bit Server VM 1.8.0_352-b08 on Linux 5.15.0-1023-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                                    268            272           3          3.7         268.2       1.0X
Nested column                                       603            610           5          1.7         603.4       0.4X
Nested column in array                             1564           1574           5          0.6        1563.8       0.2X

OpenJDK 64-Bit Server VM 1.8.0_352-b08 on Linux 5.15.0-1023-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            108          16         10.4          95.8       1.0X
Nested column                                       387            394           6          2.6         386.6       0.2X
Nested column in array                             1168           1174           4          0.9        1168.1       0.1X

OpenJDK 64-Bit Server VM 1.8.0_352-b08 on Linux 5.15.0-1023-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                                    397            401           4          2.5         397.1       1.0X
Nested column                                       764            778          14          1.3         763.5       0.5X
Nested column in array                             1866           1873           9          0.5        1866.0       0.2X


