deemoliu commented on code in PR #17253:
URL: https://github.com/apache/pinot/pull/17253#discussion_r2550974335


##########
pinot-spi/src/main/java/org/apache/pinot/spi/config/table/HashFunction.java:
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@@ -19,5 +19,5 @@
 package org.apache.pinot.spi.config.table;
 
 public enum HashFunction {
-  NONE, MD5, MURMUR3, UUID
+  NONE, MD5, MURMUR3, UUID, XXHASH, XXH128

Review Comment:
   added support for xxh_128. To compare, xxhash has lower bit size for 
reducing Upsert memory usage, and xxh128 has much lower collision probability.



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