OpenJDK 64-Bit Server VM 1.8.0_232-b18 on Mac OS X 10.15.7
Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
dynamic insert table benchmark, totalRows = 200000:  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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one partition column, 100 partitions                        23370          23588         309          0.0      116848.3       1.0X
two partition columns, 500 partitions                       37686          38079         555          0.0      188432.2       0.6X
three partition columns, 2000 partitions                   112489         113049         792          0.0      562446.1       0.2X

