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Metadata Struct Benchmark
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OpenJDK 64-Bit Server VM 11.0.18+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                                 542            570          25          9.2         108.4       1.0X
_metadata.file_path                                 683            703          24          7.3         136.6       0.8X
_metadata.file_name                                 677            690          14          7.4         135.5       0.8X
_metadata.file_size                                 575            585          20          8.7         115.0       0.9X
_metadata.file_modification_time                    569            579          10          8.8         113.7       1.0X
_metadata.row_index                                 665            678          12          7.5         133.0       0.8X
_metadata                                          1050           1060          10          4.8         210.0       0.5X

OpenJDK 64-Bit Server VM 11.0.18+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                                1490           1516          30          3.4         297.9       1.0X
_metadata.file_path                                2132           2154          39          2.3         426.5       0.7X
_metadata.file_name                                2135           2151          30          2.3         427.1       0.7X
_metadata.file_size                                1855           1869          21          2.7         371.1       0.8X
_metadata.file_modification_time                   1855           1867          19          2.7         371.1       0.8X
_metadata.row_index                                1818           1868          21          2.8         363.6       0.8X
_metadata                                          2849           2863          27          1.8         569.9       0.5X

OpenJDK 64-Bit Server VM 11.0.18+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                                5583           5599           7          0.9        1116.6       1.0X
_metadata.file_path                                6259           6276           9          0.8        1251.8       0.9X
_metadata.file_name                                6244           6261           9          0.8        1248.8       0.9X
_metadata.file_size                                5920           5944          10          0.8        1183.9       0.9X
_metadata.file_modification_time                   5935           5947           9          0.8        1186.9       0.9X
_metadata                                          6776           6805          38          0.7        1355.2       0.8X


