caiwanli opened a new issue, #39092:
URL: https://github.com/apache/arrow/issues/39092
### Describe the bug, including details regarding any error messages,
version, and platform.
Here is my code:
`#include <iostream>
#include <arrow/api.h>
#include <arrow/compute/api.h>
#include <arrow/array.h>
using namespace std;
arrow::Status RunMain() {
// row {day, month, year}
arrow::Int8Builder int8builder;
int8_t days_raw[5] = {1, 17, 12, 28, 21};
ARROW_RETURN_NOT_OK(int8builder.AppendValues(days_raw, 5));
std::shared_ptr<arrow::Array> days;
ARROW_ASSIGN_OR_RAISE(days, int8builder.Finish());
arrow::Int16Builder int16builder;
int16_t months_raw[5] = {1, 3, 5, 7, 1};
ARROW_RETURN_NOT_OK(int16builder.AppendValues(months_raw, 5));
std::shared_ptr<arrow::Array> months;
ARROW_ASSIGN_OR_RAISE(months, int16builder.Finish());
arrow::Int32Builder int32builder;
int32_t years_raw[5] = {1990, 2000, 1995, 2000, 1995};
ARROW_RETURN_NOT_OK(int32builder.AppendValues(years_raw, 5));
std::shared_ptr<arrow::Array> years;
ARROW_ASSIGN_OR_RAISE(years, int32builder.Finish());
std::shared_ptr<arrow::Field> field_day, field_month, field_year;
std::shared_ptr<arrow::Schema> schema;
field_day = arrow::field("Day", arrow::int8());
field_month = arrow::field("Month", arrow::int16());
field_year = arrow::field("Year", arrow::int32());
schema = arrow::schema({field_day, field_month, field_year});
std::shared_ptr<arrow::RecordBatch> rbatch;
rbatch = arrow::RecordBatch::Make(schema, days->length(), {days, months,
years});
auto day_int8_array =
std::static_pointer_cast<arrow::Int8Array>(rbatch->column(0));
auto month_int16_array =
std::static_pointer_cast<arrow::Int16Array>(rbatch->column(1));
auto year_int32_array =
std::static_pointer_cast<arrow::Int32Array>(rbatch->column(2));
for(int64_t i = 0; i < rbatch->column(0)->length(); ++i) {
std::cout << "[day, month, year] :" <<"[" << day_int8_array->Value(i) <<
", " << month_int16_array->Value(i) << ", " << year_int32_array->Value(i) <<
"]" << std::endl;
}
return arrow::Status::OK();
}
int main() {
arrow::Status st = RunMain();
if (!st.ok()) {
std::cerr << st << std::endl;
return 1;
}
return 0;
}
`
Running result：
Conversion is correct for Int16Array and Int32Array types, only the output
result for Int8Array is incorrect.
### Component(s)
C++
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