From 6730cb5041e9369282a7c08f4345c4da06e9e973 Mon Sep 17 00:00:00 2001
From: lgbo-ustc <lgbo.ustc@gmail.com>
Date: Mon, 1 Jul 2024 20:26:14 +0800
Subject: [PATCH] ensure same results from NaN

---
 cpp-ch/local-engine/Functions/SparkFunctionHashingExtended.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/cpp-ch/local-engine/Functions/SparkFunctionHashingExtended.h b/cpp-ch/local-engine/Functions/SparkFunctionHashingExtended.h
index 82d678aa2a4e..57bf00ba9904 100644
--- a/cpp-ch/local-engine/Functions/SparkFunctionHashingExtended.h
+++ b/cpp-ch/local-engine/Functions/SparkFunctionHashingExtended.h
@@ -28,6 +28,7 @@
 #include <DataTypes/DataTypeNullable.h>
 #include <DataTypes/NumberTraits.h>
 #include <Functions/FunctionsHashing.h>
+#include <Common/NaNUtils.h>
 
 namespace DB
 {
@@ -200,14 +201,14 @@ class SparkFunctionAnyHash : public IFunction
         {
             if constexpr (std::is_same_v<T, Float32>)
             {
-                if (n == -0.0f) [[unlikely]]
+                if (n == -0.0f || isNaN(n)) [[unlikely]]
                     return applyNumber<Int32>(0, seed);
                 else
                     return Impl::apply(reinterpret_cast<const char *>(&n), sizeof(n), seed);
             }
             else
             {
-                if (n == -0.0) [[unlikely]]
+                if (n == -0.0 || isNaN(n)) [[unlikely]]
                     return applyNumber<Int64>(0, seed);
                 else
                     return Impl::apply(reinterpret_cast<const char *>(&n), sizeof(n), seed);