Anieway commented on code in PR #36183:
URL: https://github.com/apache/arrow/pull/36183#discussion_r1241075777


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cpp/src/parquet/encoding.cc:
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@@ -2163,6 +2164,8 @@ class DeltaBitPackEncoder : public EncoderImpl, virtual 
public TypedEncoder<DTyp
   uint32_t total_value_count_{0};
   UT first_value_{0};
   UT current_value_{0};
+  UT min_delta_;

Review Comment:
   This could be done but would not change behavior as min_delta__ is set to 
the first value when encoding starts.



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