mikemccand commented on code in PR #12633:
URL: https://github.com/apache/lucene/pull/12633#discussion_r1366910269
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lucene/core/src/java/org/apache/lucene/util/fst/NodeHash.java:
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@@ -99,20 +184,18 @@ private long hash(FSTCompiler.UnCompiledNode<T> node) {
h += 17;
}
}
- // System.out.println(" ret " + (h&Integer.MAX_VALUE));
+
Review Comment:
> Do we need to mask with Long.MAX_VALUE below, since we mask anyway with
the table mask?
You're right, this is pointless -- I'll remove from both hash functions --
then we preserve that top (sign) bit for this following change:
> Instead, we should multiply with the gold constant BitMixer#PHI_C64 (make
it public).
Whoa, this sounds awesome! I was wondering if we could improve the
simplistic hashing here ... I'll open a spinoff issue with this idea. Sounds
like a low hanging hashing fruit!
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