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Nested Schema Pruning Benchmark For ORC v2
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OpenJDK 64-Bit Server VM 11.0.17+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8171M 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                                    129            182          62          7.8         128.7       1.0X
Nested column                                       532            573          24          1.9         532.3       0.2X
Nested column in array                             1440           1532          72          0.7        1439.6       0.1X

OpenJDK 64-Bit Server VM 11.0.17+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8171M 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                                    407            482          78          2.5         407.5       1.0X
Nested column                                       856            891          22          1.2         856.4       0.5X
Nested column in array                             1927           1985          41          0.5        1926.5       0.2X

OpenJDK 64-Bit Server VM 11.0.17+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8171M 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                                    377            424          47          2.7         376.9       1.0X
Nested column                                       808            847          28          1.2         807.8       0.5X
Nested column in array                             1900           1969          55          0.5        1899.9       0.2X

OpenJDK 64-Bit Server VM 11.0.17+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8171M 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                                    349            408          55          2.9         349.0       1.0X
Nested column                                       854            894          28          1.2         854.1       0.4X
Nested column in array                             1967           2038          48          0.5        1966.8       0.2X

OpenJDK 64-Bit Server VM 11.0.17+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8171M 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                                    117            188          60          8.6         116.6       1.0X
Nested column                                       567            594          24          1.8         566.8       0.2X
Nested column in array                             1490           1513          15          0.7        1490.1       0.1X

OpenJDK 64-Bit Server VM 11.0.17+8 on Linux 5.15.0-1023-azure
Intel(R) Xeon(R) Platinum 8171M 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                                    533            666          97          1.9         533.2       1.0X
Nested column                                      1045           1114          62          1.0        1045.4       0.5X
Nested column in array                             2281           2414         183          0.4        2281.0       0.2X


