H2 2.4.240: original LocalDateTime nanos          = 123456789
H2 2.4.240: plain column (precision default) nanos = 123457000 (value=2026-01-01T12:00:00.123457)
H2 2.4.240: @Column(precision=9) column nanos      = 123457000 (value=2026-01-01T12:00:00.123457)
H2 2.4.240: original Instant nanos                 = 123456789
H2 2.4.240: plain Instant column nanos             = 123457000 (value=2027-01-15T08:00:00.123457Z)
