Update DatabaseMetaData.java

Author: Paultagoras

jdbc-v2/src/main/java/com/clickhouse/jdbc/metadata/DatabaseMetaData.java

@@ -921,7 +921,7 @@ public ResultSet getPrimaryKeys(String catalog, String schema, String table) thr
                     "WHERE system.tables.primary_key <> '' " +
                     "AND system.tables.database ILIKE '" + (schema == null ? "%" : schema) + "' " +
                     "AND system.tables.name ILIKE '" + (table == null ? "%" : table) + "' " +
-                    "ORDER BY TABLE_SCHEM, TABLE_NAME, COLUMN_NAME, KEY_SEQ";
+                    "ORDER BY COLUMN_NAME";
             log.debug("getPrimaryKeys: %s", sql);
             return connection.createStatement().executeQuery(sql);
         } catch (Exception e) {