mapleFU commented on code in PR #39570:
URL: https://github.com/apache/arrow/pull/39570#discussion_r1449249741
##########
cpp/src/parquet/reader_test.cc:
##########
@@ -120,11 +120,27 @@ std::string concatenated_gzip_members() {
return data_file("concatenated_gzip_members.parquet");
}
+std::string byte_stream_split() { return
data_file("byte_stream_split.zstd.parquet"); }
+
+template <typename DType, typename ValueType = typename DType::c_type>
+std::vector<ValueType> ReadColumnValues(ParquetFileReader* file_reader, int
row_group,
+ int column, int64_t
expected_values_read) {
+ auto column_reader = checked_pointer_cast<TypedColumnReader<DType>>(
+ file_reader->RowGroup(row_group)->Column(column));
+ std::vector<ValueType> values(expected_values_read);
+ int64_t values_read;
+ auto levels_read = column_reader->ReadBatch(expected_values_read, nullptr,
nullptr,
Review Comment:
Hmmm I'm ok to not checking this. Just make it sure it's we need
##########
cpp/src/parquet/reader_test.cc:
##########
@@ -120,11 +120,27 @@ std::string concatenated_gzip_members() {
return data_file("concatenated_gzip_members.parquet");
}
+std::string byte_stream_split() { return
data_file("byte_stream_split.zstd.parquet"); }
+
+template <typename DType, typename ValueType = typename DType::c_type>
+std::vector<ValueType> ReadColumnValues(ParquetFileReader* file_reader, int
row_group,
+ int column, int64_t
expected_values_read) {
+ auto column_reader = checked_pointer_cast<TypedColumnReader<DType>>(
+ file_reader->RowGroup(row_group)->Column(column));
+ std::vector<ValueType> values(expected_values_read);
+ int64_t values_read;
+ auto levels_read = column_reader->ReadBatch(expected_values_read, nullptr,
nullptr,
Review Comment:
Hmmm I'm ok to not checking this. Just make it sure it's what we need
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