[GitHub] [arrow] mapleFU commented on a diff in pull request #34632: GH-34536: [Parquet][C++] Overwrite default config for DeltaBitPackEncoder

["mapleFU (via GitHub)" <gi...@apache.org>]

mapleFU commented on code in PR #34632:
URL: https://github.com/apache/arrow/pull/34632#discussion_r1141813680


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cpp/src/parquet/encoding.cc:
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@@ -2100,9 +2100,12 @@ class DictByteArrayDecoderImpl : public DictDecoderImpl<ByteArrayType>,
 
 template <typename DType>
 class DeltaBitPackEncoder : public EncoderImpl, virtual public TypedEncoder<DType> {
+  static_assert(std::is_same_v<int32_t, typename DType::c_type> ||
+                std::is_same_v<int64_t, typename DType::c_type>);
   // Maximum possible header size
   static constexpr uint32_t kMaxPageHeaderWriterSize = 32;

Review Comment:
   How can we config that? Set a variable in `ColumnProperties` that only works in DeltaBitPack?



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