HuaHuaY commented on code in PR #47090:
URL: https://github.com/apache/arrow/pull/47090#discussion_r2313251253


##########
cpp/src/parquet/column_writer_test.cc:
##########
@@ -506,6 +509,44 @@ void 
TestPrimitiveWriter<FLBAType>::ReadColumnFully(Compression::type compressio
   this->SyncValuesOut();
 }
 
+template <>
+void TestPrimitiveWriter<ByteArrayType>::ReadColumnFully(Compression::type 
compression,
+                                                         bool 
page_checksum_verify) {
+  int64_t total_values = static_cast<int64_t>(this->values_out_.size());
+  BuildReader(total_values, compression, page_checksum_verify);
+  this->data_buffer_.clear();
+
+  values_read_ = 0;
+  while (values_read_ < total_values) {
+    int64_t values_read_recently = 0;
+    reader_->ReadBatch(
+        static_cast<int>(this->values_out_.size()) - 
static_cast<int>(values_read_),
+        definition_levels_out_.data() + values_read_,
+        repetition_levels_out_.data() + values_read_,
+        this->values_out_ptr_ + values_read_, &values_read_recently);

Review Comment:
   ```suggestion
       reader_->ReadBatch(total_values - values_read_,
                          definition_levels_out_.data() + values_read_,
                          repetition_levels_out_.data() + values_read_,
                          this->values_out_ptr_ + values_read_, 
&values_read_recently);
   ```



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