diff --git a/dbms/include/DB/Common/VirtualColumnUnitls.h b/dbms/include/DB/Common/VirtualColumnUnitls.h
deleted file mode 100644
index a52dc06df937a525e0baa85276e9783dea0762ef..0000000000000000000000000000000000000000
--- a/dbms/include/DB/Common/VirtualColumnUnitls.h
+++ /dev/null
@@ -1,110 +0,0 @@
-#pragma once
-
-#include <DB/Interpreters/Context.h>
-#include <DB/DataStreams/AddingConstColumnBlockInputStream.h>
-#include <DB/DataTypes/DataTypeString.h>
-#include <DB/DataTypes/DataTypesNumberFixed.h>
-#include <DB/Parsers/ASTIdentifier.h>
-#include <DB/Parsers/ASTExpressionList.h>
-#include <DB/Parsers/ASTLiteral.h>
-#include <DB/Parsers/ASTSelectQuery.h>
-#include <DB/Storages/StoragePtr.h>
-
-namespace DB
-{
-
-class VirtualColumnUtils{
-public:
-static String chooseSuffix(const NamesAndTypesList &columns, const String &name)
-{
-	int id = 0;
-	String current_suffix;
-	while (true)
-	{
-		bool done = true;
-		for (auto & it : columns)
-			if (it.first == name + current_suffix)
-			{
-				done = false;
-				break;
-			}
-		if (done) break;
-		id ++;
-		current_suffix = toString<Int32>(id);
-	}
-	return current_suffix;
-}
-
-
-static String chooseSuffix(const NamesAndTypesList &columns, const std::vector<String> &names)
-{
-	int id = 0;
-	String current_suffix;
-	while (true)
-	{
-		bool done = true;
-		for (auto & it : columns)
-		{
-			for (size_t i = 0; i < names.size(); ++i)
-			{
-				if (it.first == names[i] + current_suffix)
-				{
-					done = false;
-					break;
-				}
-			}
-			if (!done)
-				break;
-		}
-		if (done)
-			break;
-		id ++;
-		current_suffix = toString<Int32>(id);
-	}
-	return current_suffix;
-}
-
-static void rewriteEntityInAst(ASTPtr ast, const String & column_name, const Field &value)
-{
-	{
-		ASTSelectQuery & select = dynamic_cast<ASTSelectQuery &>(*ast);
-		ASTExpressionList & node = dynamic_cast<ASTExpressionList &>(*select.select_expression_list);
-		ASTs & asts = node.children;
-		ASTLiteral * cur = new ASTLiteral(StringRange(NULL, NULL), value);
-		cur->alias = column_name;
-		ASTPtr column_value = cur;
-		asts.insert(asts.begin(), column_value);
-		return;
-	}
-
-
-
-
-	if (ASTExpressionList * node = dynamic_cast<ASTExpressionList *>(&*ast))
-	{
-		ASTs & asts = node->children;
-		for (int i = static_cast<int>(asts.size()) - 1; i >= 0; --i)
-		{
-			if (ASTIdentifier * child = dynamic_cast<ASTIdentifier *>(&*asts[i]))
-			{
-				if (child->kind == ASTIdentifier::Column && child->getColumnName() == column_name)
-				{
-					ASTLiteral * cur = new ASTLiteral(StringRange(NULL, NULL), value);
-					cur->alias = column_name;
-
-					ASTPtr column_value = cur;
-
-					asts.erase(asts.begin() + i);
-					asts.insert(asts.begin() + i, column_value);
-				}
-			}
-		}
-	}
-
-	for (auto it : ast->children)
-		rewriteEntityInAst(it, column_name, value);
-}
-
-};
-
-}