integer64
types do not dput
wells with hexNumeric
. Instead, we serialize and
then unserialize them cf truecluster/bit64#27 and store that as one expression per column
This makes the resulting data.frame awkward, but it will be recorded by dput
in a
way that does get read back in faithfully (so long as the expression isn't quoted).
serialize_bit64(df_in)
data.frame where each integer64
column is a serialized expression of itself
the data.frame to pre-serialize integer64
columns from