1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
# BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
from __future__ import annotations
import numpy as np
import pytest
import awkward as ak
pyarrow = pytest.importorskip("pyarrow")
to_list = ak.operations.to_list
def test_list_to_arrow():
ak_array = ak.highlevel.Array([[1.1, 2.2, 3.3], [], [4.4, 5.5]]).layout
pa_array = ak_array.to_arrow()
assert isinstance(pa_array.type.storage_type, pyarrow.LargeListType)
assert pa_array.to_pylist() == [[1.1, 2.2, 3.3], [], [4.4, 5.5]]
ak_array = ak.contents.ListOffsetArray(
ak_array.offsets, ak.contents.UnmaskedArray(ak_array.content)
)
pa_array = ak_array.to_arrow()
assert isinstance(pa_array.type.storage_type, pyarrow.LargeListType)
assert pa_array.to_pylist() == [[1.1, 2.2, 3.3], [], [4.4, 5.5]]
ak_array = ak.highlevel.Array([[1.1, 2.2, None], [], [4.4, 5.5]]).layout
pa_array = ak_array.to_arrow()
assert isinstance(pa_array.type.storage_type, pyarrow.LargeListType)
assert pa_array.to_pylist() == [[1.1, 2.2, None], [], [4.4, 5.5]]
def test_record_to_arrow():
x_content = ak.highlevel.Array([1.1, 2.2, 3.3, 4.4, 5.5]).layout
z_content = ak.highlevel.Array([1, 2, 3, None, 5]).layout
ak_array = ak.contents.RecordArray(
[
x_content,
ak.contents.UnmaskedArray(x_content),
z_content,
],
["x", "y", "z"],
)
pa_array = ak_array.to_arrow()
assert isinstance(pa_array.type.storage_type, pyarrow.StructType)
assert pa_array.to_pylist() == [
{"x": 1.1, "y": 1.1, "z": 1},
{"x": 2.2, "y": 2.2, "z": 2},
{"x": 3.3, "y": 3.3, "z": 3},
{"x": 4.4, "y": 4.4, "z": None},
{"x": 5.5, "y": 5.5, "z": 5},
]
def test_union_to_arrow():
ak_array = ak.highlevel.Array(
[1.1, 2.2, None, [1, 2, 3], "hello"], check_valid=True
).layout
pa_array = ak_array.to_arrow()
assert isinstance(pa_array.type.storage_type, pyarrow.DenseUnionType)
assert pa_array.to_pylist() == [1.1, 2.2, None, [1, 2, 3], "hello"]
ak_array = ak.contents.UnmaskedArray.simplified(
ak.highlevel.Array([1.1, 2.2, [1, 2, 3], "hello"]).layout
)
pa_array = ak_array.to_arrow()
assert isinstance(pa_array.type.storage_type, pyarrow.DenseUnionType)
assert pa_array.to_pylist() == [1.1, 2.2, [1, 2, 3], "hello"]
ak_array = ak.highlevel.Array([1.1, 2.2, [1, 2, 3], "hello"]).layout
pa_array = ak_array.to_arrow()
assert isinstance(pa_array.type.storage_type, pyarrow.DenseUnionType)
assert pa_array.to_pylist() == [1.1, 2.2, [1, 2, 3], "hello"]
def test_list_from_arrow():
original = ak.highlevel.Array([[1.1, 2.2, 3.3], [], [4.4, 5.5]]).layout
pa_array = original.to_arrow()
reconstituted = ak.from_arrow(pa_array, highlevel=False)
assert str(reconstituted.form.type) == "var * float64"
assert to_list(reconstituted) == [[1.1, 2.2, 3.3], [], [4.4, 5.5]]
original = ak.highlevel.Array([[1.1, 2.2, None], [], [4.4, 5.5]]).layout
pa_array = original.to_arrow()
reconstituted = ak.from_arrow(pa_array, highlevel=False)
assert str(reconstituted.form.type) == "var * ?float64"
assert to_list(reconstituted) == [[1.1, 2.2, None], [], [4.4, 5.5]]
original = ak.highlevel.Array([[1.1, 2.2, 3.3], [], None, [4.4, 5.5]]).layout
pa_array = original.to_arrow()
reconstituted = ak.from_arrow(pa_array, highlevel=False)
assert str(reconstituted.form.type) == "option[var * float64]"
assert to_list(reconstituted) == [[1.1, 2.2, 3.3], [], None, [4.4, 5.5]]
original = ak.highlevel.Array([[1.1, 2.2, None], [], None, [4.4, 5.5]]).layout
pa_array = original.to_arrow()
reconstituted = ak.from_arrow(pa_array, highlevel=False)
assert str(reconstituted.form.type) == "option[var * ?float64]"
assert to_list(reconstituted) == [[1.1, 2.2, None], [], None, [4.4, 5.5]]
def test_record_from_arrow():
x_content = ak.highlevel.Array([1.1, 2.2, 3.3, 4.4, 5.5]).layout
z_content = ak.highlevel.Array([1, 2, 3, None, 5]).layout
original = ak.contents.RecordArray(
[
x_content,
ak.contents.UnmaskedArray(x_content),
z_content,
],
["x", "y", "z"],
)
pa_array = original.to_arrow()
reconstituted = ak.from_arrow(pa_array, highlevel=False)
assert str(reconstituted.form.type) == "{x: float64, y: ?float64, z: ?int64}"
assert to_list(reconstituted) == [
{"x": 1.1, "y": 1.1, "z": 1},
{"x": 2.2, "y": 2.2, "z": 2},
{"x": 3.3, "y": 3.3, "z": 3},
{"x": 4.4, "y": 4.4, "z": None},
{"x": 5.5, "y": 5.5, "z": 5},
]
original = ak.contents.ByteMaskedArray(
ak.index.Index8(np.array([False, True, False, False, False], np.int8)),
original,
valid_when=False,
)
pa_array = original.to_arrow()
reconstituted = ak.from_arrow(pa_array, highlevel=False)
assert str(reconstituted.form.type) == "?{x: float64, y: ?float64, z: ?int64}"
assert to_list(reconstituted) == [
{"x": 1.1, "y": 1.1, "z": 1},
None,
{"x": 3.3, "y": 3.3, "z": 3},
{"x": 4.4, "y": 4.4, "z": None},
{"x": 5.5, "y": 5.5, "z": 5},
]
def test_union_from_arrow():
original = ak.highlevel.Array([1.1, 2.2, [1, 2, 3], "hello"]).layout
pa_array = original.to_arrow()
reconstituted = ak.from_arrow(pa_array, highlevel=False)
assert str(reconstituted.form.type) == "union[float64, var * int64, string]"
assert to_list(reconstituted) == [1.1, 2.2, [1, 2, 3], "hello"]
original = ak.highlevel.Array([1.1, 2.2, None, [1, 2, 3], "hello"]).layout
pa_array = original.to_arrow()
reconstituted = ak.from_arrow(pa_array, highlevel=False)
assert (
str(reconstituted.form.type) == "union[?float64, option[var * int64], ?string]"
)
assert to_list(reconstituted) == [1.1, 2.2, None, [1, 2, 3], "hello"]
|
