diff --git a/dbms/src/Columns/ColumnAggregateFunction.cpp b/dbms/src/Columns/ColumnAggregateFunction.cpp
index f5334441ef345b657422a7aeca2d29e5d73cd88f..de992958ddc3834569339a60edda37d73251b40c 100644
--- a/dbms/src/Columns/ColumnAggregateFunction.cpp
+++ b/dbms/src/Columns/ColumnAggregateFunction.cpp
@@ -46,14 +46,14 @@ ColumnPtr ColumnAggregateFunction::convertToValues() const
         * Due to the presence of WITH TOTALS, during aggregation the states of this aggregate function will be stored
         *  in the ColumnAggregateFunction column of type
 		*  AggregateFunction(quantileTimingState(0.5), UInt64).
-        * Then, in `TotalsHavingBlockInputStream`, it will be called `convertToValues` ​​method,
+        * Then, in `TotalsHavingBlockInputStream`, it will be called `convertToValues` method,
 		*  to get the "ready" values.
 		* But it just converts a column of type
 		*   `AggregateFunction(quantileTimingState(0.5), UInt64)`
 		* into `AggregateFunction(quantileTiming(0.5), UInt64)`
 		* - in the same states.
 		*
-		* Then `finalizeAggregation` function will be calculated, which will call `convertToValues` ​​already on the result.
+		* Then `finalizeAggregation` function will be calculated, which will call `convertToValues` already on the result.
 		* And this converts a column of type
 		*   AggregateFunction(quantileTiming(0.5), UInt64)
 		* into UInt16 - already finished result of `quantileTiming`.
diff --git a/dbms/src/Common/tests/int_hashes_perf.cpp b/dbms/src/Common/tests/int_hashes_perf.cpp
index 3f7f8d6f258c06856d31e98a4890f29dbeda85b0..2765b95d289e0f5a50711668e1d4c950874b874f 100644
--- a/dbms/src/Common/tests/int_hashes_perf.cpp
+++ b/dbms/src/Common/tests/int_hashes_perf.cpp
@@ -214,7 +214,7 @@ void report(const char * name, size_t n, double elapsed, UInt64 tsc_diff, size_t
 template <size_t Func(UInt64)>
 static inline void test(size_t n, const UInt64 * data, const char * name)
 {
-	/// throughput. Calculations of hash functions from different values ​​may overlap.
+	/// throughput. Calculations of hash functions from different values may overlap.
 	{
 		Stopwatch watch;
 
diff --git a/dbms/src/Core/BlockInfo.cpp b/dbms/src/Core/BlockInfo.cpp
index 885de8d7cd63c6d141ec0bdea8c9eeddcaae96dc..d79b5aeef2a5ee9f682af7a8eeb0ea0a8525096f 100644
--- a/dbms/src/Core/BlockInfo.cpp
+++ b/dbms/src/Core/BlockInfo.cpp
@@ -17,7 +17,7 @@ namespace ErrorCodes
 }
 
 
-/// Write values ​​in binary form. NOTE: You could use protobuf, but it would be overkill for this case.
+/// Write values in binary form. NOTE: You could use protobuf, but it would be overkill for this case.
 void BlockInfo::write(WriteBuffer & out) const
 {
  /// Set of pairs `FIELD_NUM`, value in binary form. Then 0.
@@ -31,7 +31,7 @@ void BlockInfo::write(WriteBuffer & out) const
 	writeVarUInt(0, out);
 }
 
-/// Read values ​​in binary form.
+/// Read values in binary form.
 void BlockInfo::read(ReadBuffer & in)
 {
 	UInt64 field_num = 0;
diff --git a/dbms/src/DataStreams/AddingDefaultBlockOutputStream.cpp b/dbms/src/DataStreams/AddingDefaultBlockOutputStream.cpp
index fe6a5983542f651cb479933e7b6a2fff5ef9d513..e8192972da84b5af5bc3f3d3716586547ceccd8a 100644
--- a/dbms/src/DataStreams/AddingDefaultBlockOutputStream.cpp
+++ b/dbms/src/DataStreams/AddingDefaultBlockOutputStream.cpp
@@ -8,7 +8,7 @@ void AddingDefaultBlockOutputStream::write(const DB::Block & block)
 {
 	Block res = block;
 
-    /// Computes explicitly specified values ​​(in column_defaults) by default.
+    /// Computes explicitly specified values (in column_defaults) by default.
 	/** @todo if somehow block does not contain values for implicitly-defaulted columns that are prerequisites
 		 *	for explicitly-defaulted ones, exception will be thrown during evaluating such columns
 		 *	(implicitly-defaulted columns are evaluated on the line after following one. */
diff --git a/dbms/src/DataStreams/AggregatingSortedBlockInputStream.cpp b/dbms/src/DataStreams/AggregatingSortedBlockInputStream.cpp
index 34dc8735c2ecd0de56781991d43e77c96e9cd954..a2c6087ed3171438fcbcd655f97984b53b0f97c2 100644
--- a/dbms/src/DataStreams/AggregatingSortedBlockInputStream.cpp
+++ b/dbms/src/DataStreams/AggregatingSortedBlockInputStream.cpp
@@ -100,7 +100,7 @@ void AggregatingSortedBlockInputStream::merge(ColumnPlainPtrs & merged_columns,
 		{
 			current_key.swap(next_key);
 
-            /// We will write the data for the group. We copy the values ​​of ordinary columns.
+            /// We will write the data for the group. We copy the values of ordinary columns.
 			for (size_t i = 0, size = column_numbers_not_to_aggregate.size(); i < size; ++i)
 			{
 				size_t j = column_numbers_not_to_aggregate[i];
diff --git a/dbms/src/DataStreams/GraphiteRollupSortedBlockInputStream.cpp b/dbms/src/DataStreams/GraphiteRollupSortedBlockInputStream.cpp
index 1dc9cc1fe6dfca030e2abe93cf477b68cd6354eb..fef23628e5fdc5a4c0ea6e428d41c8ee3f31ef9e 100644
--- a/dbms/src/DataStreams/GraphiteRollupSortedBlockInputStream.cpp
+++ b/dbms/src/DataStreams/GraphiteRollupSortedBlockInputStream.cpp
@@ -232,7 +232,7 @@ void GraphiteRollupSortedBlockInputStream::startNextRow(ColumnPlainPtrs & merged
 
 void GraphiteRollupSortedBlockInputStream::finishCurrentRow(ColumnPlainPtrs & merged_columns)
 {
-    /// Insert calculated values ​​of the columns `time`, `value`, `version`.
+    /// Insert calculated values of the columns `time`, `value`, `version`.
 	merged_columns[time_column_num]->insert(UInt64(current_time_rounded));
 	merged_columns[version_column_num]->insert(current_max_version);
 
diff --git a/dbms/src/DataStreams/JSONEachRowRowInputStream.cpp b/dbms/src/DataStreams/JSONEachRowRowInputStream.cpp
index f2839ab6154e2f5881b8a2306eec72c1f69c3d24..6f6e2d11d90323815e5e794b009e713e67763c69 100644
--- a/dbms/src/DataStreams/JSONEachRowRowInputStream.cpp
+++ b/dbms/src/DataStreams/JSONEachRowRowInputStream.cpp
@@ -68,7 +68,7 @@ bool JSONEachRowRowInputStream::read(Block & block)
 
 	size_t columns = block.columns();
 
-    /// Set of columns for which the values ​​were read. The rest will be filled with default values.
+    /// Set of columns for which the values were read. The rest will be filled with default values.
 	/// TODO Ability to provide your DEFAULTs.
 	bool read_columns[columns];
 	memset(read_columns, 0, columns);
diff --git a/dbms/src/DataStreams/PrettyBlockOutputStream.cpp b/dbms/src/DataStreams/PrettyBlockOutputStream.cpp
index d3baad831993b8cb3eb7a9bbc4777d106d8d3d04..f0cc1ac922e27c6b0e1ef1d3dd9352156b5473e1 100644
--- a/dbms/src/DataStreams/PrettyBlockOutputStream.cpp
+++ b/dbms/src/DataStreams/PrettyBlockOutputStream.cpp
@@ -101,7 +101,7 @@ void PrettyBlockOutputStream::write(const Block & block_)
 		return;
 	}
 
-    /// We will insert here columns with the calculated values ​​of visible lengths.
+    /// We will insert here columns with the calculated values of visible lengths.
 	Block block = block_;
 
 	size_t rows = block.rows();
diff --git a/dbms/src/DataStreams/PrettyCompactBlockOutputStream.cpp b/dbms/src/DataStreams/PrettyCompactBlockOutputStream.cpp
index 009f8dab16a4f1ee8d01de3f0aaa8f8a9e86762e..7eec893201ede6c10efdb70ef2235ad25af015ba 100644
--- a/dbms/src/DataStreams/PrettyCompactBlockOutputStream.cpp
+++ b/dbms/src/DataStreams/PrettyCompactBlockOutputStream.cpp
@@ -118,7 +118,7 @@ void PrettyCompactBlockOutputStream::write(const Block & block_)
 		return;
 	}
 
-	/// We will insert columns here with the calculated values ​​of visible lengths.
+	/// We will insert columns here with the calculated values of visible lengths.
 	Block block = block_;
 
 	size_t rows = block.rows();
diff --git a/dbms/src/DataStreams/PrettySpaceBlockOutputStream.cpp b/dbms/src/DataStreams/PrettySpaceBlockOutputStream.cpp
index 0e61c9a87a53eb29aee9605eaa19551e253bd568..02c9b91ad38f5a6b27d53e7443e7732c4f37ca0a 100644
--- a/dbms/src/DataStreams/PrettySpaceBlockOutputStream.cpp
+++ b/dbms/src/DataStreams/PrettySpaceBlockOutputStream.cpp
@@ -15,7 +15,7 @@ void PrettySpaceBlockOutputStream::write(const Block & block_)
 		return;
 	}
 
-    /// We will insert here columns with the calculated values ​​of visible lengths.
+    /// We will insert here columns with the calculated values of visible lengths.
 	Block block = block_;
 
 	size_t rows = block.rows();
diff --git a/dbms/src/DataStreams/TSKVRowInputStream.cpp b/dbms/src/DataStreams/TSKVRowInputStream.cpp
index 26a1375ff53f02f6597bbd91884161e602e4437a..7821a51daa92b2234153a6cee5bb1f28863004cf 100644
--- a/dbms/src/DataStreams/TSKVRowInputStream.cpp
+++ b/dbms/src/DataStreams/TSKVRowInputStream.cpp
@@ -92,7 +92,7 @@ bool TSKVRowInputStream::read(Block & block)
 
 	size_t columns = block.columns();
 
-    /// Set of columns for which the values ​​were read. The rest will be filled with default values.
+    /// Set of columns for which the values were read. The rest will be filled with default values.
 	/// TODO Ability to provide your DEFAULTs.
 	bool read_columns[columns];
 	memset(read_columns, 0, columns);
diff --git a/dbms/src/DataStreams/TotalsHavingBlockInputStream.cpp b/dbms/src/DataStreams/TotalsHavingBlockInputStream.cpp
index 6efcdff51d331b4b184e48c64285a9ca8002f109..a271b27933d33c43df00944308cfcf56785b2029 100644
--- a/dbms/src/DataStreams/TotalsHavingBlockInputStream.cpp
+++ b/dbms/src/DataStreams/TotalsHavingBlockInputStream.cpp
@@ -86,7 +86,7 @@ Block TotalsHavingBlockInputStream::readImpl()
 	{
 		block = children[0]->read();
 
-		/// Block with values ​​not included in `max_rows_to_group_by`. We'll postpone it.
+		/// Block with values not included in `max_rows_to_group_by`. We'll postpone it.
 		if (overflow_row && block && block.info.is_overflows)
 		{
 			overflow_aggregates = block;
@@ -125,7 +125,7 @@ Block TotalsHavingBlockInputStream::readImpl()
 
 			IColumn::Filter & filter = filter_column->getData();
 
-			/// Add values ​​to `totals` (if it was not already done).
+			/// Add values to `totals` (if it was not already done).
 			if (totals_mode == TotalsMode::BEFORE_HAVING)
 				addToTotals(current_totals, block, nullptr);
 			else
diff --git a/dbms/src/Functions/tests/logical_functions_performance.cpp b/dbms/src/Functions/tests/logical_functions_performance.cpp
index 3cecf79c38ab02d8882c19475c4e1a47a4e9a8d7..d30d25798c91933512de367ac7b468f464fa778d 100644
--- a/dbms/src/Functions/tests/logical_functions_performance.cpp
+++ b/dbms/src/Functions/tests/logical_functions_performance.cpp
@@ -69,7 +69,7 @@ struct AssociativeOperationImpl
 	AssociativeOperationImpl(UInt8ColumnPtrs & in)
 		: vec(in[in.size() - N]->getData()), continuation(in) {}
 
-	/// Returns a combination of values ​​in the i-th row of all columns stored in the constructor.
+	/// Returns a combination of values in the i-th row of all columns stored in the constructor.
 	inline UInt8 apply(size_t i) const
 	{
 		//return vec[i] ? continuation.apply(i) : 0;