Update 06-select.md

docs/en/12-taos-sql/06-select.md

@@ -12,8 +12,8 @@ SELECT {DATABASE() | CLIENT_VERSION() | SERVER_VERSION() | SERVER_STATUS() | NOW
 SELECT [DISTINCT] select_list
     from_clause
     [WHERE condition]
-    [interp_clause]
     [partition_by_clause]
+    [interp_clause]
     [window_clause]
     [group_by_clause]
     [order_by_clasue]