mapleFU commented on code in PR #33776:
URL: https://github.com/apache/arrow/pull/33776#discussion_r1092063441


##########
cpp/src/parquet/xxhasher.h:
##########
@@ -29,12 +25,10 @@
 
 namespace parquet {
 
-/// Source:
-/// https://github.com/aappleby/smhasher/blob/master/src/MurmurHash3.cpp
-/// (Modified to adapt to coding conventions and to inherit the Hasher 
abstract class)
-class PARQUET_EXPORT MurmurHash3 : public Hasher {
+class PARQUET_EXPORT XxHasher : public Hasher {
  public:
-  MurmurHash3() : seed_(DEFAULT_SEED) {}
+  XxHasher() : seed_(kDefaultSeed) {}

Review Comment:
   https://godbolt.org/z/bjz5WGx83 Seems maybe it will. Still I think `Hasher` 
is not ParquetHasher



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