From e1e2a83a9e78b5e56476f38478895b8826e2b3dd Mon Sep 17 00:00:00 2001
From: Azat Khuzhin <a3at.mail@gmail.com>
Date: Mon, 15 May 2023 20:28:28 +0200
Subject: [PATCH] Print type of the structure that will be used for
 HASHED/SPARSE_HASHED

Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
---
 src/Dictionaries/HashedDictionary.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Dictionaries/HashedDictionary.cpp b/src/Dictionaries/HashedDictionary.cpp
index 1ddcfae99b4..83d051df5e9 100644
--- a/src/Dictionaries/HashedDictionary.cpp
+++ b/src/Dictionaries/HashedDictionary.cpp
@@ -660,6 +660,11 @@ void HashedDictionary<dictionary_key_type, sparse, sharded>::createAttributes()
                     container.max_load_factor(configuration.max_load_factor);
                 attributes.emplace_back(std::move(attribute));
             }
+
+            if constexpr (IsBuiltinHashTable<typename CollectionsHolder<ValueType>::value_type>)
+                LOG_TRACE(log, "Using builtin hash table for {} attribute", dictionary_attribute.name);
+            else
+                LOG_TRACE(log, "Using sparsehash for {} attribute", dictionary_attribute.name);
         };
 
         callOnDictionaryAttributeType(dictionary_attribute.underlying_type, type_call);