I/O Supported dtypes

The following table lists are compatible cudf types for each supported IO format.

CSV

Parquet

JSON

ORC

AVRO

HDF

DLPack

Feather

Data Type

Writer

Reader

Writer

Reader

Writer¹

Reader

Writer

Reader

Reader

Writer¹

Reader¹

Writer

Reader

Writer¹

Reader¹

int8

int16

int32

int64

uint8

uint16

uint32

uint64

float32

float64

bool

str

category

list

timedelta64[s]

timedelta64[ms]

timedelta64[us]

timedelta64[ns]

datetime64[s]

datetime64[ms]

datetime64[us]

datetime64[ns]

struct

decimal64

Notes:

  • [¹] - Not GPU-accelerated.