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Metadata Struct Benchmark
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OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
Vectorized Parquet:                       Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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no metadata columns                                 511            536          19          9.8         102.1       1.0X
_metadata.file_path                                 635            648          10          7.9         127.0       0.8X
_metadata.file_name                                 632            646          16          7.9         126.5       0.8X
_metadata.file_size                                 534            541           6          9.4         106.8       1.0X
_metadata.file_modification_time                    529            539           6          9.5         105.8       1.0X
_metadata.row_index                                 623            630           5          8.0         124.6       0.8X
_metadata                                           972            981           6          5.1         194.4       0.5X

OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
Parquet-mr:                               Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
no metadata columns                                1473           1490          15          3.4         294.6       1.0X
_metadata.file_path                                2144           2158           8          2.3         428.7       0.7X
_metadata.file_name                                2152           2167          12          2.3         430.4       0.7X
_metadata.file_size                                1899           1910           8          2.6         379.7       0.8X
_metadata.file_modification_time                   1896           1907           6          2.6         379.2       0.8X
_metadata.row_index                                1833           1848          11          2.7         366.7       0.8X
_metadata                                          2872           2884           7          1.7         574.5       0.5X

OpenJDK 64-Bit Server VM 17.0.6+10 on Linux 5.15.0-1031-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
JSON:                                     Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
no metadata columns                                5166           5189          15          1.0        1033.3       1.0X
_metadata.file_path                                5880           5899          11          0.9        1176.0       0.9X
_metadata.file_name                                5837           5858          11          0.9        1167.5       0.9X
_metadata.file_size                                5587           5624          15          0.9        1117.3       0.9X
_metadata.file_modification_time                   5606           5626          13          0.9        1121.1       0.9X
_metadata                                          6603           6646          41          0.8        1320.6       0.8X


