def test_column():
col_id = 'id'
dtype = DataType(Type.INT32, Layout.FIXED_WIDTH)
data = pa.array([1, 2, 3])
col = Column(col_id, dtype, data)
assert col_id == col.id
assert dtype.type == col.dtype.type
assert data == col.data
def binary():
return DataType(Type.BINARY, Layout.FIXED_WIDTH)
def string():
return DataType(Type.STRING, Layout.FIXED_WIDTH)
def half_float():
return DataType(Type.HALF_FLOAT, Layout.FIXED_WIDTH)
def interval():
return DataType(Type.INTERVAL, Layout.FIXED_WIDTH)
def time32():
return DataType(Type.TIME32, Layout.FIXED_WIDTH)
def date64():
return DataType(Type.DATE64, Layout.FIXED_WIDTH)
def bool():
return DataType(Type.BOOL, Layout.FIXED_WIDTH)
def uint8():
return DataType(Type.UINT8, Layout.FIXED_WIDTH)
def duration():
return DataType(Type.DURATION, Layout.FIXED_WIDTH)
def extension():
return DataType(Type.EXTENSION, Layout.FIXED_WIDTH)
def fixed_sized_list():
return DataType(Type.FIXED_SIZED_LIST, Layout.FIXED_WIDTH)
def list():
return DataType(Type.LIST, Layout.FIXED_WIDTH)
def decimal():
return DataType(Type.DECIMAL, Layout.FIXED_WIDTH)
def fixed_sized_binary():
return DataType(Type.FIXED_SIZE_BINARY, Layout.FIXED_WIDTH)
def double():
return DataType(Type.DOUBLE, Layout.FIXED_WIDTH)
def uint16():
return DataType(Type.UINT16, Layout.FIXED_WIDTH)
def date32():
return DataType(Type.DATE32, Layout.FIXED_WIDTH)
def uint32():
return DataType(Type.UINT32, Layout.FIXED_WIDTH)
def timestamp():
return DataType(Type.TIMESTAMP, Layout.FIXED_WIDTH)
def uint64():
return DataType(Type.UINT64, Layout.FIXED_WIDTH)
def time64():
return DataType(Type.TIME64, Layout.FIXED_WIDTH)
def float():
return DataType(Type.FLOAT, Layout.FIXED_WIDTH)