kiszk commented on code in PR #48205:
URL: https://github.com/apache/arrow/pull/48205#discussion_r2583522725
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cpp/src/parquet/column_writer.cc:
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@@ -2603,7 +2622,24 @@ struct SerializeFunctor<
template <>
struct SerializeFunctor<::parquet::FLBAType, ::arrow::HalfFloatType> {
Status Serialize(const ::arrow::HalfFloatArray& array, ArrowWriteContext*,
FLBA* out) {
+#if ARROW_LITTLE_ENDIAN
+ return SerializeLittleEndianValues(array, array.raw_values(), out);
+#else
const uint16_t* values = array.raw_values();
+ const int64_t length = array.length();
Review Comment:
Can we create `SerializeLittleEndianValues()` for big-endian, which calls
`::arrow::bit_util::ToLittleEndian()` when `&values[i]` is called?
Then we can use it instead of storing converted values to a vector? This can
reduce memory accesses.
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