emkornfield commented on a change in pull request #8632:
URL: https://github.com/apache/arrow/pull/8632#discussion_r522673324
##########
File path: cpp/src/parquet/encoding.cc
##########
@@ -127,6 +129,21 @@ class PlainEncoder : public EncoderImpl, virtual public
TypedEncoder<DType> {
}
protected:
+ template <typename ArrayType>
+ void PutBinaryArray(const ArrayType& array) {
+ const int64_t total_bytes =
+ array.value_offset(array.length()) - array.value_offset(0);
+ PARQUET_THROW_NOT_OK(sink_.Reserve(total_bytes + array.length() *
sizeof(uint32_t)));
Review comment:
is a check for int32 overflow needed here here?
##########
File path: cpp/src/parquet/arrow/arrow_reader_writer_test.cc
##########
@@ -1135,14 +1172,50 @@ TEST_F(TestStringParquetIO,
EmptyStringColumnRequiredWrite) {
ASSERT_NO_FATAL_FAILURE(this->ReaderFromSink(&reader));
ASSERT_NO_FATAL_FAILURE(this->ReadTableFromFile(std::move(reader), &out));
ASSERT_EQ(1, out->num_columns());
- ASSERT_EQ(100, out->num_rows());
+ ASSERT_EQ(table->num_rows(), out->num_rows());
std::shared_ptr<ChunkedArray> chunked_array = out->column(0);
ASSERT_EQ(1, chunked_array->num_chunks());
AssertArraysEqual(*values, *chunked_array->chunk(0));
}
+using TestLargeBinaryParquetIO = TestParquetIO<::arrow::LargeBinaryType>;
+
+TEST_F(TestLargeBinaryParquetIO, Basics) {
+ const char* json = "[\"foo\", \"\", null, \"\xff\"]";
+
+ const auto large_type = ::arrow::large_binary();
+ const auto narrow_type = ::arrow::binary();
+ const auto large_array = ::arrow::ArrayFromJSON(large_type, json);
+ const auto narrow_array = ::arrow::ArrayFromJSON(narrow_type, json);
+
+ this->RoundTripSingleColumn(large_array, narrow_array,
+ default_arrow_writer_properties());
+ const auto arrow_properties =
+ ::parquet::ArrowWriterProperties::Builder().store_schema()->build();
+
+ this->RoundTripSingleColumn(large_array, large_array, arrow_properties);
+}
+
+using TestLargeStringParquetIO = TestParquetIO<::arrow::LargeStringType>;
+
+TEST_F(TestLargeStringParquetIO, Basics) {
+ const char* json = R"(["foo", "", null, "bar"])";
+
+ const auto large_type = ::arrow::large_utf8();
+ const auto narrow_type = ::arrow::utf8();
+ const auto large_array = ::arrow::ArrayFromJSON(large_type, json);
+ const auto narrow_array = ::arrow::ArrayFromJSON(narrow_type, json);
+
+ this->RoundTripSingleColumn(large_array, narrow_array,
Review comment:
is this intended to be two different arrays? same as above? maybe add
a comment on what you are testing here? (lack of schema to read back?)
##########
File path: cpp/src/parquet/statistics.cc
##########
@@ -691,9 +634,60 @@ void TypedStatisticsImpl<ByteArrayType>::PlainDecode(const
std::string& src,
dst->ptr = reinterpret_cast<const uint8_t*>(src.c_str());
}
+} // namespace
+
// ----------------------------------------------------------------------
// Public factory functions
+std::shared_ptr<Comparator> Comparator::Make(Type::type physical_type,
+ SortOrder::type sort_order,
+ int type_length) {
+ if (SortOrder::SIGNED == sort_order) {
Review comment:
is this just moving code?
##########
File path: cpp/src/parquet/encoding.cc
##########
@@ -127,6 +129,21 @@ class PlainEncoder : public EncoderImpl, virtual public
TypedEncoder<DType> {
}
protected:
+ template <typename ArrayType>
Review comment:
i'm not very familiar with this code, could you let me know what these
changes are intended to do?
##########
File path: cpp/src/parquet/encoding.cc
##########
@@ -592,6 +597,29 @@ class DictEncoderImpl : public EncoderImpl, virtual public
DictEncoder<DType> {
/// Indices that have not yet be written out by WriteIndices().
ArrowPoolVector<int32_t> buffered_indices_;
+ template <typename ArrayType>
+ void PutBinaryArray(const ArrayType& array) {
+ ::arrow::VisitArrayDataInline<typename ArrayType::TypeClass>(
+ *array.data(),
+ [&](::arrow::util::string_view view) {
+ // XXX check length
Review comment:
implement the TODO?
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