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unsafe projection
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OpenJDK 64-Bit Server VM 11.0.4+11-LTS on Linux 3.10.0-862.3.2.el7.x86_64
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
unsafe projection:                        Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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single long                                        2218           2219           1        121.0           8.3       1.0X
single nullable long                               3200           3201           1         83.9          11.9       0.7X
7 primitive types                                  7809           7813           5         34.4          29.1       0.3X
7 nullable primitive types                        11906          11908           3         22.5          44.4       0.2X