diff --git a/jdbc-v2/src/main/java/com/clickhouse/jdbc/metadata/ResultSetMetaData.java b/jdbc-v2/src/main/java/com/clickhouse/jdbc/metadata/ResultSetMetaData.java
index d5dea3347..114ba5e4c 100644
--- a/jdbc-v2/src/main/java/com/clickhouse/jdbc/metadata/ResultSetMetaData.java
+++ b/jdbc-v2/src/main/java/com/clickhouse/jdbc/metadata/ResultSetMetaData.java
@@ -165,6 +165,6 @@ public boolean isDefinitelyWritable(int column) throws SQLException {
 
     @Override
     public String getColumnClassName(int column) throws SQLException {
-        throw new SQLException("Not implemented", ExceptionUtils.SQL_STATE_FEATURE_NOT_SUPPORTED);
+        throw null;
     }
 }