JSON construct datetime64 views, not copies

[wesm]

cf C code

dtype = PyArray_DescrFromType(NPY_INT64); new_obj = PyArray_View(obj, dtype, NULL); Py_DECREF(dtype); if (new_obj == NULL) { ... }

[jreback]

@wesm keep open?

[jreback]

cc @Komnomnomnom

close this?

[Komnomnomnom]

yep, no longer relevant, #4498 means the serialiser works directly with the numpy data, no views or copies.

[jreback]

gr8!