diff --git a/source/dnode/vnode/tsdb/inc/tsdbIdx.h b/source/dnode/vnode/tsdb/inc/tsdbIdx.h
new file mode 100644
index 0000000000000000000000000000000000000000..73b2c5e6c5eaa02db5961d70e3ad0ec89b10a2c8
--- /dev/null
+++ b/source/dnode/vnode/tsdb/inc/tsdbIdx.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TD_TSDB_IDX_H_
+#define _TD_TSDB_IDX_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_TSDB_IDX_H_*/
\ No newline at end of file
diff --git a/source/dnode/vnode/tsdb/inc/tsdbSMA.h b/source/dnode/vnode/tsdb/inc/tsdbSMA.h
new file mode 100644
index 0000000000000000000000000000000000000000..800a276bc85c1cc97cc84b9deb214bb66c154a0b
--- /dev/null
+++ b/source/dnode/vnode/tsdb/inc/tsdbSMA.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TD_TSDB_SMA_H_
+#define _TD_TSDB_SMA_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_TSDB_SMA_H_*/
\ No newline at end of file
diff --git a/source/dnode/vnode/tsdb/src/tsdbIdx.c b/source/dnode/vnode/tsdb/src/tsdbIdx.c
new file mode 100644
index 0000000000000000000000000000000000000000..6dea4a4e57392be988126c579648f39a8270b9bf
--- /dev/null
+++ b/source/dnode/vnode/tsdb/src/tsdbIdx.c
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
\ No newline at end of file
diff --git a/source/dnode/vnode/tsdb/src/tsdbSMA.c b/source/dnode/vnode/tsdb/src/tsdbSMA.c
new file mode 100644
index 0000000000000000000000000000000000000000..6dea4a4e57392be988126c579648f39a8270b9bf
--- /dev/null
+++ b/source/dnode/vnode/tsdb/src/tsdbSMA.c
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
\ No newline at end of file