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Nested Schema Pruning Benchmark For Parquet
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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 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                                     85             96          10         11.8          85.0       1.0X
Nested column                                        88             92           4         11.4          88.0       1.0X
Nested column in array                              275            286           7          3.6         275.4       0.3X

OpenJDK 64-Bit Server VM 17.0.5+8 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                                    400            413          13          2.5         400.1       1.0X
Nested column                                       412            429          18          2.4         412.0       1.0X
Nested column in array                              754            787          17          1.3         754.1       0.5X

OpenJDK 64-Bit Server VM 17.0.5+8 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                                    388            395           6          2.6         387.8       1.0X
Nested column                                       392            400           6          2.5         392.4       1.0X
Nested column in array                              737            744           5          1.4         737.5       0.5X

OpenJDK 64-Bit Server VM 17.0.5+8 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                                    386            392           4          2.6         386.3       1.0X
Nested column                                       416            421           4          2.4         416.4       0.9X
Nested column in array                              776            783           9          1.3         775.5       0.5X

OpenJDK 64-Bit Server VM 17.0.5+8 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                                    101            114          11          9.9         101.0       1.0X
Nested column                                       107            121          15          9.4         106.9       0.9X
Nested column in array                              326            369          46          3.1         326.5       0.3X

OpenJDK 64-Bit Server VM 17.0.5+8 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                                    522            551          36          1.9         521.8       1.0X
Nested column                                       573            600          23          1.7         572.5       0.9X
Nested column in array                             1044           1066          32          1.0        1043.8       0.5X


