[td-225] add more info in log.

src/vnode/src/vnodeRead.c

@@ -67,12 +67,12 @@ int32_t vnodeProcessRead(void *param, SReadMsg *pReadMsg) {
   return (*vnodeProcessReadMsgFp[msgType])(pVnode, pReadMsg);
 }
 
-static void vnodePutItemIntoReadQueue(SVnodeObj *pVnode, void **qhandle) {
+static void vnodePutItemIntoReadQueue(SVnodeObj *pVnode, void **qhandle, void *ahandle) {
   SReadMsg *pRead = (SReadMsg *)taosAllocateQitem(sizeof(SReadMsg));
   pRead->rpcMsg.msgType = TSDB_MSG_TYPE_QUERY;
   pRead->pCont = qhandle;
   pRead->contLen = 0;
-  pRead->rpcMsg.handle = NULL;
+  pRead->rpcMsg.ahandle = ahandle;
 
   atomic_add_fetch_32(&pVnode->refCount, 1);
 
@@ -80,14 +80,23 @@ static void vnodePutItemIntoReadQueue(SVnodeObj *pVnode, void **qhandle) {
   taosWriteQitem(pVnode->rqueue, TAOS_QTYPE_QUERY, pRead);
 }
 
-static int32_t vnodeDumpQueryResult(SRspRet *pRet, void *pVnode, void **handle, bool *freeHandle) {
+/**
+ *
+ * @param pRet         response message object
+ * @param pVnode       the vnode object
+ * @param handle       qhandle for executing query
+ * @param freeHandle   free qhandle or not
+ * @param ahandle      sqlObj address at client side
+ * @return
+ */
+static int32_t vnodeDumpQueryResult(SRspRet *pRet, void *pVnode, void **handle, bool *freeHandle, void *ahandle) {
   bool continueExec = false;
 
   int32_t code = TSDB_CODE_SUCCESS;
   if ((code = qDumpRetrieveResult(*handle, (SRetrieveTableRsp **)&pRet->rsp, &pRet->len, &continueExec)) == TSDB_CODE_SUCCESS) {
     if (continueExec) {
       *freeHandle = false;
-      vnodePutItemIntoReadQueue(pVnode, handle);
+      vnodePutItemIntoReadQueue(pVnode, handle, ahandle);
       pRet->qhandle = *handle;
     } else {
       *freeHandle = true;
@@ -189,7 +198,7 @@ static int32_t vnodeProcessQueryMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg) {
 
     if (handle != NULL) {
       vDebug("vgId:%d, QInfo:%p, dnode query msg disposed, create qhandle and returns to app", vgId, *handle);
-      vnodePutItemIntoReadQueue(pVnode, handle);
+      vnodePutItemIntoReadQueue(pVnode, handle, pReadMsg->rpcMsg.ahandle);
     }
   } else {
     assert(pCont != NULL);
@@ -210,7 +219,7 @@ static int32_t vnodeProcessQueryMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg) {
              pReadMsg->rpcMsg.handle);
 
       // set the real rsp error code
-      pReadMsg->rpcMsg.code = vnodeDumpQueryResult(&pReadMsg->rspRet, pVnode, qhandle, &freehandle);
+      pReadMsg->rpcMsg.code = vnodeDumpQueryResult(&pReadMsg->rspRet, pVnode, qhandle, &freehandle, pReadMsg->rpcMsg.ahandle);
 
       // NOTE: set return code to be TSDB_CODE_QRY_HAS_RSP to notify dnode to return msg to client
       code = TSDB_CODE_QRY_HAS_RSP;
@@ -287,7 +296,8 @@ static int32_t vnodeProcessFetchMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg) {
       return TSDB_CODE_QRY_NOT_READY;
     }
 
-    code = vnodeDumpQueryResult(pRet, pVnode, handle, &freeHandle);
+    // ahandle is the sqlObj pointer
+    code = vnodeDumpQueryResult(pRet, pVnode, handle, &freeHandle, pReadMsg->rpcMsg.ahandle);
   }
 
   // If qhandle is not added into vread queue, the query should be completed already or paused with error.