copy_to Function Limitation for POSIXct or POSIXlt Column Type - copy_to Function Limitation for R Data Frames with POSIXct or POSIXlt Column Type - Teradata Package for R

If an R data frame with POSIXct or POSIXlt column type is used in the copy_to function, then the fractional seconds data is ignored.

To work around this limitation, convert POSIXct and POSIXlt columns in the R data frame to character vectors.