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Nested Schema Pruning Benchmark For Parquet
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OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-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                                     56             62           5         17.8          56.1       1.0X
Nested column                                       291            306           9          3.4         291.0       0.2X
Nested column in array                             1126           1166          24          0.9        1126.1       0.0X

OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-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                                    372            399          28          2.7         371.9       1.0X
Nested column                                       686            724          27          1.5         686.0       0.5X
Nested column in array                             1892           1973          72          0.5        1892.0       0.2X

OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-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                                    351            361           6          2.9         350.6       1.0X
Nested column                                       661            677           8          1.5         660.6       0.5X
Nested column in array                             1886           1935          41          0.5        1886.3       0.2X

OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-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                                    322            343          15          3.1         322.2       1.0X
Nested column                                       686            712          23          1.5         686.4       0.5X
Nested column in array                             1813           1918          67          0.6        1813.1       0.2X

OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-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                                     81             92           8         12.3          81.2       1.0X
Nested column                                       331            393          42          3.0         330.6       0.2X
Nested column in array                             1209           1324          70          0.8        1209.5       0.1X

OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-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                                    475            482           4          2.1         475.1       1.0X
Nested column                                       843            883          17          1.2         843.2       0.6X
Nested column in array                             1895           1936          33          0.5        1895.1       0.3X


