diff --git a/source/dnode/vnode/CMakeLists.txt b/source/dnode/vnode/CMakeLists.txt
index 85d0f76268ac55cbf131917f234ef66f108ce64d..58e00ee34a3029550b952d1c2a02eca178f6b7a3 100644
--- a/source/dnode/vnode/CMakeLists.txt
+++ b/source/dnode/vnode/CMakeLists.txt
@@ -30,6 +30,7 @@ target_sources(
     "src/tsdb/tsdbFS.c"
     "src/tsdb/tsdbOpen.c"
     "src/tsdb/tsdbMemTable.c"
+    "src/tsdb/tsdbMemTable2.c"
     "src/tsdb/tsdbRead.c"
     "src/tsdb/tsdbReadImpl.c"
     "src/tsdb/tsdbSma.c"
diff --git a/source/dnode/vnode/src/tsdb/tsdbMemTable2.c b/source/dnode/vnode/src/tsdb/tsdbMemTable2.c
new file mode 100644
index 0000000000000000000000000000000000000000..ae0d4630d13b0103c602815973a5675b6c3f557a
--- /dev/null
+++ b/source/dnode/vnode/src/tsdb/tsdbMemTable2.c
@@ -0,0 +1,93 @@
+/*
+ * 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/>.
+ */
+
+#include "tsdb.h"
+
+typedef struct SMemTable       SMemTable;
+typedef struct SMemData        SMemData;
+typedef struct SMemSkipList    SMemSkipList;
+typedef struct SMemSkipListCfg SMemSkipListCfg;
+
+struct SMemTable {
+  STsdb     *pTsdb;
+  TSKEY      minKey;
+  TSKEY      maxKey;
+  int64_t    minVer;
+  int64_t    maxVer;
+  int64_t    nRows;
+  int32_t    nHash;
+  int32_t    nBucket;
+  SMemData **pBuckets;
+};
+
+struct SMemSkipListCfg {
+  int8_t  maxLevel;
+  int32_t nKey;
+  int32_t nData;
+};
+
+struct SMemSkipList {
+  int8_t   level;
+  uint32_t seed;
+};
+
+struct SMemData {
+  SMemData    *pHashNext;
+  tb_uid_t     suid;
+  tb_uid_t     uid;
+  TSKEY        minKey;
+  TSKEY        maxKey;
+  int64_t      minVer;
+  int64_t      maxVer;
+  int64_t      nRows;
+  SMemSkipList sl;
+};
+
+// SMemTable
+int32_t tsdbMemTableCreate2(STsdb *pTsdb, SMemTable **ppMemTb) {
+  SMemTable *pMemTb = NULL;
+
+  pMemTb = taosMemoryCalloc(1, sizeof(*pMemTb));
+  if (pMemTb == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
+
+  pMemTb->pTsdb = pTsdb;
+  pMemTb->minKey = TSKEY_MAX;
+  pMemTb->maxKey = TSKEY_MIN;
+  pMemTb->minVer = -1;
+  pMemTb->maxVer = -1;
+  pMemTb->nRows = 0;
+  pMemTb->nHash = 0;
+  pMemTb->nBucket = 1024;
+  pMemTb->pBuckets = taosMemoryCalloc(pMemTb->nBucket, sizeof(*pMemTb->pBuckets));
+  if (pMemTb->pBuckets == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
+
+  *ppMemTb = pMemTb;
+  return 0;
+}
+
+int32_t tsdbMemTableDestroy2(STsdb *pTsdb, SMemTable *pMT) {
+  // TODO
+  return 0;
+}
+
+// SMemData
+
+// SMemSkipList
\ No newline at end of file