OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz make_date(): Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ prepare make_date() 3214 3344 209 31.1 32.1 1.0X make_date(2019, 9, 16) 2342 2348 6 42.7 23.4 1.4X make_date(*, *, *) 4485 4533 56 22.3 44.8 0.7X OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz make_timestamp(): Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative --------------------------------------------------------------------------------------------------------------------------- prepare make_timestamp() 3744 3775 35 0.3 3744.1 1.0X make_timestamp(2019, 1, 2, 3, 4, 50.123456) 82 91 9 12.2 82.3 45.5X make_timestamp(2019, 1, 2, 3, 4, 60.000000) 81 89 7 12.4 81.0 46.2X make_timestamp(2019, 12, 31, 23, 59, 60.00) 70 80 9 14.3 69.9 53.5X make_timestamp(*, *, *, 3, 4, 50.123456) 308 314 7 3.2 308.1 12.2X make_timestamp(*, *, *, *, *, 0) 302 316 14 3.3 301.9 12.4X make_timestamp(*, *, *, *, *, 60.0) 290 296 6 3.4 290.4 12.9X make_timestamp(2019, 1, 2, *, *, *) 3888 3902 15 0.3 3888.1 1.0X make_timestamp(*, *, *, *, *, *) 3902 3908 8 0.3 3901.6 1.0X