OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure
Intel(R) Xeon(R) CPU E5-2673 v4 @ 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                         6789           6843          76          0.0       33944.4       1.0X
two partition columns, 500 partitions                       17469          18429        1358          0.0       87345.0       0.4X
three partition columns, 2000 partitions                    48564          49213         918          0.0      242817.5       0.1X