From 1d0caf1c906f359b90ed7c6a266417a463cfbe34 Mon Sep 17 00:00:00 2001
From: alesapin <alesapin@gmail.com>
Date: Sat, 30 Nov 2024 18:49:15 +0100
Subject: [PATCH] Trivial change

---
 src/Columns/ColumnAggregateFunction.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/Columns/ColumnAggregateFunction.cpp b/src/Columns/ColumnAggregateFunction.cpp
index 2569d2235a3..902096c788e 100644
--- a/src/Columns/ColumnAggregateFunction.cpp
+++ b/src/Columns/ColumnAggregateFunction.cpp
@@ -418,9 +418,10 @@ WeakHash32 ColumnAggregateFunction::getWeakHash32() const
 
 void ColumnAggregateFunction::updateHashFast(SipHash & hash) const
 {
-    /// Fallback to per-element hashing, as there is no faster way
-    for (size_t i = 0; i < size(); ++i)
-        updateHashWithValue(i, hash);
+    WriteBufferFromOwnString wbuf;
+    const ColumnAggregateFunction::Container & vec = getData();
+    func->serializeBatch(vec, 0, size(), wbuf);
+    hash.update(wbuf.str().c_str(), wbuf.str().size());
 }
 
 /// The returned size is less than real size. The reason is that some parts of