cgiachalis opened a new issue, #811:
URL: https://github.com/apache/arrow-nanoarrow/issues/811
Converting an int64 to timestamp type is not working via
`as_nanoarrow_array` method:
```r
as_nanoarrow_array(bit64::as.integer64(1), schema = na_timestamp("ns"))
# Error: Invalid: Invalid conversion to timestamp
```
It works doing it *"manually"*:
``` r
x <- bit64::as.integer64(nanotime::as.nanotime(Sys.time()))
schema <- as_nanoarrow_schema(na_timestamp("ns"))
array <- nanoarrow_array_init(schema)
array <- nanoarrow_array_modify(array, list(length = length(x),
null_count = 0,
buffers = list(NULL, x)))
array
#> <nanoarrow_array timestamp('ns', '')[1]>
#> Warning in convert_array.default(array): 1 value(s) may have incurred
loss of
#> precision in conversion to double()
#> $ length : int 1
#> $ null_count: int 0
#> $ offset : int 0
#> $ buffers :List of 2
#> ..$ :<nanoarrow_buffer validity<bool>[null] ``
#> ..$ :<nanoarrow_buffer data<int64>[1][8 b]> `1.76e+18`
#> $ dictionary: NULL
#> $ children : list()
```
NB: Printing the `array` object comes with a warning about potential loss
of precision in conversion to `double()`
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