Fixed common source of errors while deploying newer version of ClickH…

…ouse [#CLICKHOUSE-3282].

dbms/src/Interpreters/Compiler.cpp

@@ -181,6 +181,17 @@ SharedLibraryPtr Compiler::getOrCount(
 }
 
 
+/// This will guarantee that code will compile only when version of headers match version of running server.
+static void addCodeToAssertHeadersMatch(WriteBuffer & out)
+{
+    out <<
+        "#include <Common/config_version.h>\n"
+        "#if VERSION_REVISION != " << ClickHouseRevision::get() << "\n"
+        "#error \"ClickHouse headers revision doesn't match runtime revision of the server.\"\n"
+        "#endif\n\n";
+}
+
+
 void Compiler::compile(
     HashedKey hashed_key,
     std::string file_name,
@@ -197,6 +208,8 @@ void Compiler::compile(
 
     {
         WriteBufferFromFile out(cpp_file_path);
+
+        addCodeToAssertHeadersMatch(out);
         out << get_code();
     }