opt sma and ndex name conflict

source/dnode/mnode/impl/inc/mndIndexComm.h

+
+/*
+ * 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_MND_IDX_COMM_H_
+#define _TD_MND_IDX_COMM_H_
+
+#include "mndInt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SSIdx {
+  int   type;  // sma or idx
+  void *pIdx;
+} SSIdx;
+
+int32_t mndCheckIdxExist(SMnode *pMnode, char *name, int type, SSIdx *idx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_MND_IDX_COMM_H_*/
\ No newline at end of file

source/dnode/mnode/impl/src/mndIndex.c

@@ -17,6 +17,7 @@
 #include "mndIndex.h"
 #include "mndDb.h"
 #include "mndDnode.h"
+#include "mndIndexComm.h"
 #include "mndInfoSchema.h"
 #include "mndMnode.h"
 #include "mndPrivilege.h"
@@ -415,8 +416,10 @@ static int32_t mndProcessCreateIdxReq(SRpcMsg *pReq) {
     mError("idx:%s, failed to create since stb:%s not exist", createReq.idxName, createReq.stbName);
     goto _OVER;
   }
-
-  pIdx = mndAcquireIdx(pMnode, createReq.idxName);
+  SSIdx idx = {0};
+  if (mndCheckIdxExist(pMnode, createReq.idxName, SDB_IDX, &idx) == 0) {
+    pIdx = idx.pIdx;
+  }
   if (pIdx != NULL) {
     terrno = TSDB_CODE_MND_SMA_ALREADY_EXIST;
     goto _OVER;
@@ -880,6 +883,10 @@ int32_t mndProcessDropTagIdxReq(SRpcMsg *pReq) {
     goto _OVER;
   }
   mInfo("idx:%s, start to drop", req.name);
+  SSIdx idx = {0};
+  if (mndCheckIdxExist(pMnode, req.name, SDB_IDX, &idx) == 0) {
+    pIdx = idx.pIdx;
+  }
 
   pIdx = mndAcquireIdx(pMnode, req.name);
   if (pIdx == NULL) {

source/dnode/mnode/impl/src/mndIndexCom.c

+/*
+ * 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 "mndIndex.h"
+#include "mndIndexComm.h"
+#include "mndSma.h"
+
+static void *mndGetIdx(SMnode *pMnode, char *name, int type) {
+  SSdb *pSdb = pMnode->pSdb;
+  void *pIdx = sdbAcquire(pSdb, type, name);
+  if (pIdx == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {
+    terrno = 0;
+  }
+  return pIdx;
+}
+
+int mndCheckIdxExist(SMnode *pMnode, char *name, int type, SSIdx *idx) {
+  SSmaObj *pSma = mndGetIdx(pMnode, name, SDB_SMA);
+  SIdxObj *pIdx = mndGetIdx(pMnode, name, SDB_IDX);
+
+  if (pSma == NULL && pIdx == NULL) return 0;
+
+  if (pSma != NULL) {
+    if (type == SDB_SMA) {
+      idx->type = SDB_SMA;
+      idx->pIdx = pSma;
+    } else {  // type ==  SDB_IDX
+      mndReleaseSma(pMnode, pSma);
+    }
+  } else {
+    if (type == SDB_SMA) {
+      mndReleaseIdx(pMnode, pIdx);
+    } else {
+      idx->type = SDB_IDX;
+      idx->pIdx = pIdx;
+    }
+  }
+  return 0;
+}

source/dnode/mnode/impl/src/mndSma.c

@@ -18,6 +18,7 @@
 #include "mndDb.h"
 #include "mndDnode.h"
 #include "mndIndex.h"
+#include "mndIndexComm.h"
 #include "mndInfoSchema.h"
 #include "mndMnode.h"
 #include "mndPrivilege.h"
@@ -735,8 +736,11 @@ static int32_t mndProcessCreateSmaReq(SRpcMsg *pReq) {
     terrno = TSDB_CODE_MND_STREAM_ALREADY_EXIST;
     goto _OVER;
   }
+  SSIdx idx = {0};
+  if (mndCheckIdxExist(pMnode, createReq.name, SDB_SMA, &idx) == 0) {
+    pSma = idx.pIdx;
+  }
 
-  pSma = mndAcquireSma(pMnode, createReq.name);
   if (pSma != NULL) {
     if (createReq.igExists) {
       mInfo("sma:%s, already exist in sma:%s, ignore exist is set", createReq.name, pSma->name);
@@ -982,7 +986,10 @@ static int32_t mndProcessDropSmaReq(SRpcMsg *pReq) {
 
   mInfo("sma:%s, start to drop", dropReq.name);
 
-  pSma = mndAcquireSma(pMnode, dropReq.name);
+  SSIdx idx = {0};
+  if (mndCheckIdxExist(pMnode, dropReq.name, SDB_SMA, &idx) == 0) {
+    pSma = idx.pIdx;
+  }
   if (pSma == NULL) {
     if (dropReq.igNotExists) {
       mInfo("sma:%s, not exist, ignore not exist is set", dropReq.name);