aucahuasi commented on a change in pull request #11159:
URL: https://github.com/apache/arrow/pull/11159#discussion_r710220892
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File path: cpp/src/arrow/compute/kernels/scalar_nested_test.cc
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@@ -39,6 +39,46 @@ TEST(TestScalarNested, ListValueLength) {
}
}
+TEST(TestScalarNested, ListElement) {
+ for (auto ty : {list(int16()), fixed_size_list(uint8(), 2)}) {
+ auto input = ArrayFromJSON(ty, "[[8, 5], [74, 92], [7, 4]]");
+ auto out_ty = ty->id() == Type::LIST ? int16() : uint8();
+ auto expected = ArrayFromJSON(out_ty, "[5, 92, 4]");
+ auto index = ScalarFromJSON(int32(), "1");
+ CheckVectorBinary("list_element", input, Datum(index), expected);
+ }
+
+ for (auto ty : {fixed_size_list(float32(), 2), large_list(float64())}) {
+ auto input = ArrayFromJSON(ty, "[[8.0, 5.0], [74.0, 92.0], [7.0, 4.0]]");
+ auto out_ty = ty->id() == Type::FIXED_SIZE_LIST ? float32() : float64();
+ auto expected = ArrayFromJSON(out_ty, "[8, 74.0, 7.0]");
+ auto index = ScalarFromJSON(int64(), "0");
+ CheckVectorBinary("list_element", input, Datum(index), expected);
+ }
+
+ // Construct a list with a non-empty null slot
+ auto input = ArrayFromJSON(list(int16()), "[[0, null, 1], [0, 0], [2, 3],
[4, 5]]");
+ TweakValidityBit(input, 1, false);
+ auto expected = ArrayFromJSON(int16(), "[null, 0, 3, 5]");
+ auto index = ScalarFromJSON(int32(), "1");
+ CheckVectorBinary("list_element", input, Datum(index), expected);
+}
+
+TEST(TestScalarNested, ListElementChunkedArray) {
Review comment:
This is the code that is throwing that issue
`CheckScalar("list_element", {input, Datum(index)}, expected);`
cc @edponce @lidavidm
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