ehn(query): refactor c driver codes.

source/client/inc/clientInt.h

@@ -43,13 +43,23 @@ extern "C" {
     }                                \
   } while (0)
 
+#define ERROR_MSG_BUF_DEFAULT_SIZE 512
 #define HEARTBEAT_INTERVAL 1500  // ms
 
+// todo refactor
 enum {
   CONN_TYPE__QUERY = 1,
   CONN_TYPE__TMQ,
 };
 
+enum {
+  RES_TYPE__QUERY = 1,
+  RES_TYPE__TMQ,
+};
+
+#define TD_RES_QUERY(res) (*(int8_t*)res == RES_TYPE__QUERY)
+#define TD_RES_TMQ(res)   (*(int8_t*)res == RES_TYPE__TMQ)
+
 typedef struct SAppInstInfo SAppInstInfo;
 
 typedef struct {
@@ -172,33 +182,15 @@ typedef struct SReqResultInfo {
   int32_t        payloadLen;
 } SReqResultInfo;
 
-typedef struct SShowReqInfo {
-  int64_t execId;  // showId/queryId
-  int32_t vgId;
-  SArray* pArray;        // SArray<SVgroupInfo>
-  int32_t currentIndex;  // current accessed vgroup index.
-} SShowReqInfo;
-
 typedef struct SRequestSendRecvBody {
   tsem_t             rspSem;  // not used now
   void*              fp;
-  SShowReqInfo       showInfo;  // todo this attribute will be removed after the query framework being completed.
   SDataBuf           requestMsg;
   int64_t            queryJob;  // query job, created according to sql query DAG.
   struct SQueryPlan* pDag;      // the query dag, generated according to the sql statement.
   SReqResultInfo     resInfo;
 } SRequestSendRecvBody;
 
-#define ERROR_MSG_BUF_DEFAULT_SIZE 512
-
-enum {
-  RES_TYPE__QUERY = 1,
-  RES_TYPE__TMQ,
-};
-
-#define TD_RES_QUERY(res) (*(int8_t*)res == RES_TYPE__QUERY)
-#define TD_RES_TMQ(res)   (*(int8_t*)res == RES_TYPE__TMQ)
-
 typedef struct {
   int8_t  resType;
   char*   topic;
@@ -217,7 +209,6 @@ typedef struct SRequestObj {
   int32_t              sqlLen;
   int64_t              self;
   char*                msgBuf;
-  void*                pInfo;  // sql parse info, generated by parser module
   int32_t              code;
   SArray*              dbList;
   SArray*              tableList;
@@ -252,7 +243,7 @@ extern int (*handleRequestRspFp[TDMT_MAX])(void*, const SDataBuf* pMsg, int32_t
 int           genericRspCallback(void* param, const SDataBuf* pMsg, int32_t code);
 SMsgSendInfo* buildMsgInfoImpl(SRequestObj* pReqObj);
 
-int taos_init();
+int   taos_init();
 
 void* createTscObj(const char* user, const char* auth, const char* db, SAppInstInfo* pAppInfo);
 void  destroyTscObj(void* pObj);
@@ -266,7 +257,6 @@ char* getDbOfConnection(STscObj* pObj);
 void  setConnectionDB(STscObj* pTscObj, const char* db);
 void  resetConnectDB(STscObj* pTscObj);
 
-void taos_init_imp(void);
 int  taos_options_imp(TSDB_OPTION option, const char* str);
 
 void* openTransporter(const char* user, const char* auth, int32_t numOfThreads);
@@ -286,8 +276,7 @@ int32_t buildRequest(STscObj* pTscObj, const char* sql, int sqlLen, SRequestObj*
 
 void*   doFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4);
 void    doSetOneRowPtr(SReqResultInfo* pResultInfo);
-int32_t setResultDataPtr(SReqResultInfo* pResultInfo, TAOS_FIELD* pFields, int32_t numOfCols, int32_t numOfRows,
-                         bool convertUcs4);
+int32_t setResultDataPtr(SReqResultInfo* pResultInfo, TAOS_FIELD* pFields, int32_t numOfCols, int32_t numOfRows, bool convertUcs4);
 void    setResSchemaInfo(SReqResultInfo* pResInfo, const SSchema* pSchema, int32_t numOfCols);
 int32_t setQueryResultFromRsp(SReqResultInfo* pResultInfo, const SRetrieveTableRsp* pRsp, bool convertUcs4);
 

source/client/src/clientEnv.c

@@ -33,7 +33,7 @@ SAppInfo appInfo;
 int32_t  clientReqRefPool = -1;
 int32_t  clientConnRefPool = -1;
 
-static TdThreadOnce tscinit = PTHREAD_ONCE_INIT;
+static TdThreadOnce   tscinit = PTHREAD_ONCE_INIT;
 volatile int32_t      tscInitRes = 0;
 
 static void registerRequest(SRequestObj *pRequest) {
@@ -188,7 +188,6 @@ static void doDestroyRequest(void *p) {
 
   taosMemoryFreeClear(pRequest->msgBuf);
   taosMemoryFreeClear(pRequest->sqlstr);
-  taosMemoryFreeClear(pRequest->pInfo);
   taosMemoryFreeClear(pRequest->pDb);
 
   doFreeReqResultInfo(&pRequest->body.resInfo);
@@ -198,10 +197,6 @@ static void doDestroyRequest(void *p) {
     schedulerFreeJob(pRequest->body.queryJob);
   }
 
-  if (pRequest->body.showInfo.pArray != NULL) {
-    taosArrayDestroy(pRequest->body.showInfo.pArray);
-  }
-
   taosArrayDestroy(pRequest->tableList);
   taosArrayDestroy(pRequest->dbList);
 

source/client/src/clientImpl.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 "clientInt.h"
 #include "clientLog.h"

source/client/src/clientMain.c

@@ -193,7 +193,7 @@ TAOS_ROW taos_fetch_row(TAOS_RES *res) {
     }
 
   } else {
-    // assert to avoid uninitialization error
+    // assert to avoid un-initialization error
     ASSERT(0);
   }
   return NULL;
@@ -355,6 +355,7 @@ int taos_result_precision(TAOS_RES *res) {
   if (res == NULL) {
     return TSDB_TIME_PRECISION_MILLI;
   }
+
   if (TD_RES_QUERY(res)) {
     SRequestObj *pRequest = (SRequestObj *)res;
     return pRequest->body.resInfo.precision;
@@ -467,6 +468,7 @@ int taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData) {
   if (res == NULL) {
     return 0;
   }
+
   if (TD_RES_TMQ(res)) {
     SReqResultInfo *pResultInfo = tmqGetNextResInfo(res);
     if (pResultInfo == NULL) {

source/client/src/clientMsgHandler.c

@@ -117,10 +117,10 @@ int32_t processUseDbRsp(void* param, const SDataBuf* pMsg, int32_t code) {
     struct SCatalog *pCatalog = NULL;
 
     if (usedbRsp.vgVersion >= 0) {
-      int32_t code = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &pCatalog);
-      if (code != TSDB_CODE_SUCCESS) {
+      int32_t code1 = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &pCatalog);
+      if (code1 != TSDB_CODE_SUCCESS) {
         tscWarn("catalogGetHandle failed, clusterId:%" PRIx64 ", error:%s", pRequest->pTscObj->pAppInfo->clusterId,
-                tstrerror(code));
+                tstrerror(code1));
       } else {
         catalogRemoveDB(pCatalog, usedbRsp.db, usedbRsp.uid);
       }
@@ -154,10 +154,10 @@ int32_t processUseDbRsp(void* param, const SDataBuf* pMsg, int32_t code) {
   } else {
     struct SCatalog* pCatalog = NULL;
 
-    int32_t code = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &pCatalog);
-    if (code != TSDB_CODE_SUCCESS) {
+    int32_t code1 = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &pCatalog);
+    if (code1 != TSDB_CODE_SUCCESS) {
       tscWarn("catalogGetHandle failed, clusterId:%" PRIx64 ", error:%s", pRequest->pTscObj->pAppInfo->clusterId,
-              tstrerror(code));
+              tstrerror(code1));
     } else {
       catalogUpdateDBVgInfo(pCatalog, output.db, output.dbId, output.dbVgroup);
     }
@@ -209,84 +209,9 @@ int32_t processDropDbRsp(void* param, const SDataBuf* pMsg, int32_t code) {
 }
 
 void initMsgHandleFp() {
-#if 0
-  tscBuildMsg[TSDB_SQL_SELECT] = tscBuildQueryMsg;
-  tscBuildMsg[TSDB_SQL_INSERT] = tscBuildSubmitMsg;
-  tscBuildMsg[TSDB_SQL_FETCH] = tscBuildFetchMsg;
-
-  tscBuildMsg[TSDB_SQL_CREATE_DB] = tscBuildCreateDbMsg;
-  tscBuildMsg[TSDB_SQL_CREATE_USER] = tscBuildUserMsg;
-  tscBuildMsg[TSDB_SQL_CREATE_FUNCTION] = tscBuildCreateFuncMsg;
-
-  tscBuildMsg[TSDB_SQL_CREATE_ACCT] = tscBuildAcctMsg;
-  tscBuildMsg[TSDB_SQL_ALTER_ACCT] = tscBuildAcctMsg;
-
-  tscBuildMsg[TSDB_SQL_CREATE_TABLE] = tscBuildCreateTableMsg;
-  tscBuildMsg[TSDB_SQL_DROP_USER] = tscBuildDropUserAcctMsg;
-  tscBuildMsg[TSDB_SQL_DROP_ACCT] = tscBuildDropUserAcctMsg;
-  tscBuildMsg[TSDB_SQL_DROP_DB] = tscBuildDropDbMsg;
-  tscBuildMsg[TSDB_SQL_DROP_FUNCTION] = tscBuildDropFuncMsg;
-  tscBuildMsg[TSDB_SQL_SYNC_DB_REPLICA] = tscBuildSyncDbReplicaMsg;
-  tscBuildMsg[TSDB_SQL_DROP_TABLE] = tscBuildDropTableMsg;
-  tscBuildMsg[TSDB_SQL_ALTER_USER] = tscBuildUserMsg;
-  tscBuildMsg[TSDB_SQL_CREATE_DNODE] = tscBuildCreateDnodeMsg;
-  tscBuildMsg[TSDB_SQL_DROP_DNODE] = tscBuildDropDnodeMsg;
-  tscBuildMsg[TSDB_SQL_CFG_DNODE] = tscBuildCfgDnodeMsg;
-  tscBuildMsg[TSDB_SQL_ALTER_TABLE] = tscBuildAlterTableMsg;
-  tscBuildMsg[TSDB_SQL_UPDATE_TAG_VAL] = tscBuildUpdateTagMsg;
-  tscBuildMsg[TSDB_SQL_ALTER_DB] = tscAlterDbMsg;
-  tscBuildMsg[TSDB_SQL_COMPACT_VNODE] = tscBuildCompactMsg;
-
-
-  tscBuildMsg[TSDB_SQL_USE_DB] = tscBuildUseDbMsg;
-  tscBuildMsg[TSDB_SQL_STABLEVGROUP] = tscBuildSTableVgroupMsg;
-  tscBuildMsg[TSDB_SQL_RETRIEVE_FUNC] = tscBuildRetrieveFuncMsg;
-
-  tscBuildMsg[TSDB_SQL_HB] = tscBuildHeartBeatMsg;
-  tscBuildMsg[TSDB_SQL_SHOW] = tscBuildShowMsg;
-  tscBuildMsg[TSDB_SQL_RETRIEVE_MNODE] = tscBuildRetrieveFromMgmtMsg;
-  tscBuildMsg[TSDB_SQL_KILL_QUERY] = tscBuildKillMsg;
-  tscBuildMsg[TSDB_SQL_KILL_STREAM] = tscBuildKillMsg;
-  tscBuildMsg[TSDB_SQL_KILL_CONNECTION] = tscBuildKillMsg;
-
-  tscProcessMsgRsp[TSDB_SQL_SELECT] = tscProcessQueryRsp;
-  tscProcessMsgRsp[TSDB_SQL_FETCH] = tscProcessRetrieveRspFromNode;
-
-  tscProcessMsgRsp[TSDB_SQL_DROP_DB] = tscProcessDropDbRsp;
-  tscProcessMsgRsp[TSDB_SQL_DROP_TABLE] = tscProcessDropTableRsp;
-
-  tscProcessMsgRsp[TSDB_SQL_USE_DB] = tscProcessUseDbRsp;
-  tscProcessMsgRsp[TSDB_SQL_META] = tscProcessTableMetaRsp;
-  tscProcessMsgRsp[TSDB_SQL_STABLEVGROUP] = tscProcessSTableVgroupRsp;
-  tscProcessMsgRsp[TSDB_SQL_MULTI_META] = tscProcessMultiTableMetaRsp;
-  tscProcessMsgRsp[TSDB_SQL_RETRIEVE_FUNC] = tscProcessRetrieveFuncRsp;
-
-  tscProcessMsgRsp[TSDB_SQL_SHOW] = tscProcessShowRsp;
-  tscProcessMsgRsp[TSDB_SQL_RETRIEVE_MNODE] = tscProcessRetrieveRspFromNode;  // rsp handled by same function.
-  tscProcessMsgRsp[TSDB_SQL_DESCRIBE_TABLE] = tscProcessDescribeTableRsp;
-
-  tscProcessMsgRsp[TSDB_SQL_CURRENT_DB]   = tscProcessLocalRetrieveRsp;
-  tscProcessMsgRsp[TSDB_SQL_CURRENT_USER] = tscProcessLocalRetrieveRsp;
-  tscProcessMsgRsp[TSDB_SQL_SERV_VERSION] = tscProcessLocalRetrieveRsp;
-  tscProcessMsgRsp[TSDB_SQL_CLI_VERSION]  = tscProcessLocalRetrieveRsp;
-  tscProcessMsgRsp[TSDB_SQL_SERV_STATUS]  = tscProcessLocalRetrieveRsp;
-
-  tscProcessMsgRsp[TSDB_SQL_RETRIEVE_EMPTY_RESULT] = tscProcessEmptyResultRsp;
-
-  tscProcessMsgRsp[TSDB_SQL_RETRIEVE_GLOBALMERGE] = tscProcessRetrieveGlobalMergeRsp;
-
-  tscProcessMsgRsp[TSDB_SQL_ALTER_TABLE] = tscProcessAlterTableMsgRsp;
-  tscProcessMsgRsp[TSDB_SQL_ALTER_DB] = tscProcessAlterDbMsgRsp;
-  tscProcessMsgRsp[TSDB_SQL_COMPACT_VNODE] = tscProcessCompactRsp;
-
-  tscProcessMsgRsp[TSDB_SQL_SHOW_CREATE_TABLE] = tscProcessShowCreateRsp;
-  tscProcessMsgRsp[TSDB_SQL_SHOW_CREATE_STABLE] = tscProcessShowCreateRsp;
-  tscProcessMsgRsp[TSDB_SQL_SHOW_CREATE_DATABASE] = tscProcessShowCreateRsp;
-#endif
-
-  handleRequestRspFp[TMSG_INDEX(TDMT_MND_CONNECT)]       = processConnectRsp;
-  handleRequestRspFp[TMSG_INDEX(TDMT_MND_CREATE_DB)]     = processCreateDbRsp;
-  handleRequestRspFp[TMSG_INDEX(TDMT_MND_USE_DB)]        = processUseDbRsp;
-  handleRequestRspFp[TMSG_INDEX(TDMT_MND_CREATE_STB)]    = processCreateTableRsp;
-  handleRequestRspFp[TMSG_INDEX(TDMT_MND_DROP_DB)]       = processDropDbRsp;
+  handleRequestRspFp[TMSG_INDEX(TDMT_MND_CONNECT)]    = processConnectRsp;
+  handleRequestRspFp[TMSG_INDEX(TDMT_MND_CREATE_DB)]  = processCreateDbRsp;
+  handleRequestRspFp[TMSG_INDEX(TDMT_MND_USE_DB)]     = processUseDbRsp;
+  handleRequestRspFp[TMSG_INDEX(TDMT_MND_CREATE_STB)] = processCreateTableRsp;
+  handleRequestRspFp[TMSG_INDEX(TDMT_MND_DROP_DB)]    = processDropDbRsp;
 }

source/libs/executor/src/executorimpl.c

@@ -6815,6 +6815,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
     ops[i] = createOperatorTree(pChildNode, pTaskInfo, pHandle, queryId, taskId, pTableGroupInfo);
   }
 
+  SOperatorInfo* pOptr = NULL;
   if (QUERY_NODE_PHYSICAL_PLAN_PROJECT == type) {
     SProjectPhysiNode* pProjPhyNode = (SProjectPhysiNode*) pPhyNode;
     SExprInfo*   pExprInfo = createExprInfo(pProjPhyNode->pProjections, NULL, &num);
@@ -6822,7 +6823,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
     SSDataBlock* pResBlock = createOutputBuf_rv1(pPhyNode->pOutputDataBlockDesc);
     SLimit limit = {.limit = pProjPhyNode->limit, .offset = pProjPhyNode->offset};
     SLimit slimit = {.limit = pProjPhyNode->slimit, .offset = pProjPhyNode->soffset};
-    return createProjectOperatorInfo(ops[0], pExprInfo, num, pResBlock, &limit, &slimit, pTaskInfo);
+    pOptr = createProjectOperatorInfo(ops[0], pExprInfo, num, pResBlock, &limit, &slimit, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_AGG == type) {
     SAggPhysiNode* pAggNode = (SAggPhysiNode*)pPhyNode;
     SExprInfo*     pExprInfo = createExprInfo(pAggNode->pAggFuncs, pAggNode->pGroupKeys, &num);
@@ -6836,9 +6837,9 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
         pScalarExprInfo = createExprInfo(pAggNode->pExprs, NULL, &numOfScalarExpr);
       }
 
-      return createGroupOperatorInfo(ops[0], pExprInfo, num, pResBlock, pColList, pAggNode->node.pConditions, pScalarExprInfo, numOfScalarExpr, pTaskInfo, NULL);
+      pOptr = createGroupOperatorInfo(ops[0], pExprInfo, num, pResBlock, pColList, pAggNode->node.pConditions, pScalarExprInfo, numOfScalarExpr, pTaskInfo, NULL);
     } else {
-      return createAggregateOperatorInfo(ops[0], pExprInfo, num, pResBlock, pTaskInfo, pTableGroupInfo);
+      pOptr = createAggregateOperatorInfo(ops[0], pExprInfo, num, pResBlock, pTaskInfo, pTableGroupInfo);
     }
   } else if (QUERY_NODE_PHYSICAL_PLAN_INTERVAL == type) {
     SIntervalPhysiNode* pIntervalPhyNode = (SIntervalPhysiNode*)pPhyNode;
@@ -6856,39 +6857,39 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
     };
 
     int32_t primaryTsSlotId = ((SColumnNode*) pIntervalPhyNode->window.pTspk)->slotId;
-    return createIntervalOperatorInfo(ops[0], pExprInfo, num, pResBlock, &interval, primaryTsSlotId, pTableGroupInfo, pTaskInfo);
+    pOptr = createIntervalOperatorInfo(ops[0], pExprInfo, num, pResBlock, &interval, primaryTsSlotId, pTableGroupInfo, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_SORT == type) {
     SSortPhysiNode* pSortPhyNode = (SSortPhysiNode*)pPhyNode;
 
     SSDataBlock* pResBlock = createOutputBuf_rv1(pPhyNode->pOutputDataBlockDesc);
     SArray*      info = createSortInfo(pSortPhyNode->pSortKeys, pSortPhyNode->pTargets);
     SArray*      slotMap = createIndexMap(pSortPhyNode->pTargets);
-    return createSortOperatorInfo(ops[0], pResBlock, info, slotMap, pTaskInfo);
+    pOptr = createSortOperatorInfo(ops[0], pResBlock, info, slotMap, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_SESSION_WINDOW == type) {
     SSessionWinodwPhysiNode* pSessionNode = (SSessionWinodwPhysiNode*)pPhyNode;
 
     SExprInfo*   pExprInfo = createExprInfo(pSessionNode->window.pFuncs, NULL, &num);
     SSDataBlock* pResBlock = createOutputBuf_rv1(pPhyNode->pOutputDataBlockDesc);
-    return createSessionAggOperatorInfo(ops[0], pExprInfo, num, pResBlock, pSessionNode->gap, pTaskInfo);
+    pOptr = createSessionAggOperatorInfo(ops[0], pExprInfo, num, pResBlock, pSessionNode->gap, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_PARTITION == type) {
     SPartitionPhysiNode* pPartNode = (SPartitionPhysiNode*) pPhyNode;
     SArray* pColList = extractPartitionColInfo(pPartNode->pPartitionKeys);
     SSDataBlock* pResBlock = createOutputBuf_rv1(pPhyNode->pOutputDataBlockDesc);
 
     SExprInfo* pExprInfo = createExprInfo(pPartNode->pTargets, NULL, &num);
-    return createPartitionOperatorInfo(ops[0], pExprInfo, num, pResBlock, pColList, pTaskInfo, NULL);
+    pOptr = createPartitionOperatorInfo(ops[0], pExprInfo, num, pResBlock, pColList, pTaskInfo, NULL);
   } else if (QUERY_NODE_PHYSICAL_PLAN_STATE_WINDOW == type) {
     SStateWinodwPhysiNode* pStateNode = (SStateWinodwPhysiNode*) pPhyNode;
 
     SExprInfo* pExprInfo = createExprInfo(pStateNode->window.pFuncs, NULL, &num);
     SSDataBlock* pResBlock = createOutputBuf_rv1(pPhyNode->pOutputDataBlockDesc);
-    return createStatewindowOperatorInfo(ops[0], pExprInfo, num, pResBlock, pTaskInfo);
+    pOptr = createStatewindowOperatorInfo(ops[0], pExprInfo, num, pResBlock, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_JOIN == type) {
     SJoinPhysiNode* pJoinNode = (SJoinPhysiNode*) pPhyNode;
     SSDataBlock* pResBlock = createOutputBuf_rv1(pPhyNode->pOutputDataBlockDesc);
 
     SExprInfo* pExprInfo = createExprInfo(pJoinNode->pTargets, NULL, &num);
-    return createJoinOperatorInfo(ops, size, pExprInfo, num, pResBlock, pJoinNode->pOnConditions, pTaskInfo);
+    pOptr = createJoinOperatorInfo(ops, size, pExprInfo, num, pResBlock, pJoinNode->pOnConditions, pTaskInfo);
   } else {
     ASSERT(0);
   } /*else if (pPhyNode->info.type == OP_MultiTableAggregate) {
@@ -6901,7 +6902,9 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
        return createMultiTableAggOperatorInfo(op, pPhyNode->pTargets, pTaskInfo, pTableGroupInfo);
      }
    }*/
-  return NULL;
+
+  taosMemoryFree(ops);
+  return pOptr;
 }
 
 static tsdbReaderT createDataReaderImpl(STableScanPhysiNode* pTableScanNode, STableGroupInfo* pGroupInfo,

source/libs/qworker/src/qworker.c

@@ -1020,7 +1020,7 @@ int32_t qwProcessReady(QW_FPARAMS_DEF, SQWMsg *qwMsg) {
   }
   
   if (ctx->phase == QW_PHASE_PRE_QUERY) {
-    ctx->ctrlConnInfo.handle == qwMsg->connInfo.handle;
+    ctx->ctrlConnInfo.handle = qwMsg->connInfo.handle;
     ctx->ctrlConnInfo.ahandle = qwMsg->connInfo.ahandle;
     QW_SET_EVENT_RECEIVED(ctx, QW_EVENT_READY);
     needRsp = false;