Continuation

src/Common/RadixSort.h

@@ -252,7 +252,8 @@ private:
         /// There are loops of NUM_PASSES. It is very important that they are unfolded at compile-time.
 
         /// For each of the NUM_PASSES bit ranges of the key, consider how many times each value of this bit range met.
-        CountType histograms[HISTOGRAM_SIZE * NUM_PASSES] = {0};
+        std::unique_ptr<CountType[HISTOGRAM_SIZE * NUM_PASSES]> histograms_holder = std::unique_ptr<CountType[HISTOGRAM_SIZE * NUM_PASSES]>();
+        CountType * histograms = *histograms_holder;
 
         typename Traits::Allocator allocator;
 

src/Functions/array/arrayEnumerateExtended.h

@@ -58,8 +58,8 @@ public:
     void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t input_rows_count) override;
 
 private:
-    /// Initially allocate a piece of memory for 512 elements. NOTE: This is just a guess.
-    static constexpr size_t INITIAL_SIZE_DEGREE = 9;
+    /// Initially allocate a piece of memory for 64 elements. NOTE: This is just a guess.
+    static constexpr size_t INITIAL_SIZE_DEGREE = 6;
 
     template <typename T>
     struct MethodOneNumber

src/Functions/array/arrayEnumerateRanked.h

@@ -118,8 +118,8 @@ public:
     void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t input_rows_count) override;
 
 private:
-    /// Initially allocate a piece of memory for 512 elements. NOTE: This is just a guess.
-    static constexpr size_t INITIAL_SIZE_DEGREE = 9;
+    /// Initially allocate a piece of memory for 64 elements. NOTE: This is just a guess.
+    static constexpr size_t INITIAL_SIZE_DEGREE = 6;
 
     void executeMethodImpl(
         const std::vector<const ColumnArray::Offsets *> & offsets_by_depth,

src/Functions/array/arrayIntersect.cpp

@@ -55,8 +55,8 @@ public:
 private:
     const Context & context;
 
-    /// Initially allocate a piece of memory for 512 elements. NOTE: This is just a guess.
-    static constexpr size_t INITIAL_SIZE_DEGREE = 9;
+    /// Initially allocate a piece of memory for 64 elements. NOTE: This is just a guess.
+    static constexpr size_t INITIAL_SIZE_DEGREE = 4;
 
     struct UnpackedArrays
     {