poppgs opened a new issue, #45090:
URL: https://github.com/apache/arrow/issues/45090
### Describe the bug, including details regarding any error messages,
version, and platform.
I have been given a parquet file with the following schema:
```
Name: string
Ident: string
Date: date32[day]
EventTimestamp: timestamp[us]
```
I dumped out the schema using a simple python script:
```
#! /usr/bin/env python3
import pyarrow as pa
import pyarrow.parquet as pq
import sys
schema = pq.read_schema(sys.argv[1])
print(schema)
```
I was trying to figure out what C++ type is date32[day]? I've looked all
over and it SEEMS like the underlying data type is int32_t. But if I try to
read it using that type, I get:
```
terminate called after throwing an instance of 'parquet::ParquetException'
what(): Column converted type mismatch. Column 'Date' has converted type
'DATE' not 'INT_32'
```
I've also tried using a string but I get this error:
```
terminate called after throwing an instance of 'parquet::ParquetException'
what(): Column physical type mismatch. Column 'Date' has physical type
'INT32' not 'BYTE_ARRAY'
```
Here's my code, almost verbatim what is on the example page for Parquet.
Nothing I try allows me to read the DATE type:
```
#include <iostream>
#include "arrow/io/file.h"
#include "parquet/stream_reader.h"
#include "readfile.h"
int main(int argc, char **argv)
{
if (argc < 2)
{
std::cout << "Usage: " << argv[0] << " <input filename" << std::endl;
exit(2);
}
char *input_filename = argv[1];
std::cout << "Input filename is " << input_filename << std::endl;
std::shared_ptr<arrow::io::ReadableFile> infile;
PARQUET_ASSIGN_OR_THROW(
infile,
arrow::io::ReadableFile::Open(input_filename));
parquet::StreamReader os{parquet::ParquetFileReader::Open(infile)}
std::string name;
std::string ident;
int32_t date;
std::string ts_event_utc;
while (!os.eof())
{
os >> name >> ident >> date >> ts_event_utc >> parquet::EndRow;
}
```
Looking at the code in streamreader.cc, I see no reference to a DATE type in
either the exceptions at the top of the file or the operators below.
### Component(s)
C++
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