diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 441e87eff7..d2c447e851 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -88,6 +88,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_CFG_NOT_FOUND                 TAOS_DEF_ERROR_CODE(0, 0x0114)
 #define TSDB_CODE_REPEAT_INIT                   TAOS_DEF_ERROR_CODE(0, 0x0115)
 #define TSDB_CODE_DUP_KEY                       TAOS_DEF_ERROR_CODE(0, 0x0116)
+#define TSDB_CODE_NEED_RETRY                    TAOS_DEF_ERROR_CODE(0, 0x0117)
 
 #define TSDB_CODE_REF_NO_MEMORY                 TAOS_DEF_ERROR_CODE(0, 0x0140)
 #define TSDB_CODE_REF_FULL                      TAOS_DEF_ERROR_CODE(0, 0x0141)
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index ce5b101b4a..b021651c16 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -310,6 +310,7 @@ void hbMgrInitMqHbRspHandle();
 SRequestObj* launchQueryImpl(SRequestObj* pRequest, SQuery* pQuery, int32_t code, bool keepQuery);
 int32_t      getQueryPlan(SRequestObj* pRequest, SQuery* pQuery, SArray** pNodeList);
 int32_t      scheduleQuery(SRequestObj* pRequest, SQueryPlan* pDag, SArray* pNodeList);
+int32_t refreshMeta(STscObj* pTscObj, SRequestObj* pRequest);
 
 #ifdef __cplusplus
 }
diff --git a/source/client/src/clientStmt.c b/source/client/src/clientStmt.c
index f7ef1f7e81..d7b746605d 100644
--- a/source/client/src/clientStmt.c
+++ b/source/client/src/clientStmt.c
@@ -586,6 +586,16 @@ int stmtExec(TAOS_STMT *stmt) {
     STMT_ERR_RET(qBuildStmtOutput(pStmt->sql.pQuery, pStmt->exec.pVgHash, pStmt->exec.pBlockHash));
     launchQueryImpl(pStmt->exec.pRequest, pStmt->sql.pQuery, TSDB_CODE_SUCCESS, true);
   }
+
+  if (pStmt->exec.pRequest->code && NEED_CLIENT_HANDLE_ERROR(pStmt->exec.pRequest->code)) {
+    code = refreshMeta(pStmt->exec.pRequest->pTscObj, pStmt->exec.pRequest);
+    if (code) {
+      pStmt->exec.pRequest->code = code;
+    } else {
+      STMT_ERR_RET(stmtResetStmt(pStmt));
+      STMT_ERR_RET(TSDB_CODE_NEED_RETRY);
+    }
+  }
   
   STMT_ERR_JRET(pStmt->exec.pRequest->code);
 
@@ -613,13 +623,11 @@ int stmtClose(TAOS_STMT *stmt) {
 const char *stmtErrstr(TAOS_STMT *stmt) {
   STscStmt* pStmt = (STscStmt*)stmt;
 
-  if (stmt == NULL) {
+  if (stmt == NULL || NULL == pStmt->exec.pRequest) {
     return (char*) tstrerror(terrno);
   }
 
-  if (pStmt->exec.pRequest) {
-    pStmt->exec.pRequest->code = terrno;
-  }
+  pStmt->exec.pRequest->code = terrno;
 
   return taos_errstr(pStmt->exec.pRequest);
 }
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index 8460400b59..5f023fb637 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -537,7 +537,7 @@ static int vnodeProcessSubmitReq(SVnode *pVnode, int64_t version, void *pReq, in
       goto _exit;
     }
 
-    rsp.numOfRows += nRows;
+    rsp.affectedRows += nRows;
   }
 
 _exit:
diff --git a/source/libs/scalar/src/filter.c b/source/libs/scalar/src/filter.c
index 80e5669cc2..eaab8e1f53 100644
--- a/source/libs/scalar/src/filter.c
+++ b/source/libs/scalar/src/filter.c
@@ -3577,6 +3577,22 @@ EDealRes fltReviseRewriter(SNode** pNode, void* pContext) {
   }
   
   if (QUERY_NODE_NODE_LIST == nodeType(*pNode)) {
+    SNodeListNode *listNode = (SNodeListNode *)*pNode;
+    if (QUERY_NODE_VALUE != nodeType(listNode->pNodeList->pHead->pNode)) {
+      stat->scalarMode = true;
+      return DEAL_RES_CONTINUE;
+    }
+
+    SValueNode *valueNode = (SValueNode *)listNode->pNodeList->pHead->pNode;
+    uint8_t type = valueNode->node.resType.type;
+    SNode *node = NULL;
+    FOREACH(node, listNode->pNodeList) {
+      if (type != ((SValueNode *)node)->node.resType.type) {
+        stat->scalarMode = true;
+        return DEAL_RES_CONTINUE;
+      }
+    }
+
     return DEAL_RES_CONTINUE;
   }
 
diff --git a/source/libs/scalar/src/sclvector.c b/source/libs/scalar/src/sclvector.c
index 1e37533f2c..b83147bfee 100644
--- a/source/libs/scalar/src/sclvector.c
+++ b/source/libs/scalar/src/sclvector.c
@@ -265,13 +265,53 @@ static FORCE_INLINE void varToTimestamp(char *buf, SScalarParam* pOut, int32_t r
 }
 
 static FORCE_INLINE void varToSigned(char *buf, SScalarParam* pOut, int32_t rowIndex) {
-  int64_t value = strtoll(buf, NULL, 10);
-  colDataAppendInt64(pOut->columnData, rowIndex, &value);
+  switch (pOut->columnData->info.type) {
+    case TSDB_DATA_TYPE_TINYINT: {
+      int8_t value = (int8_t)strtoll(buf, NULL, 10);
+      colDataAppendInt8(pOut->columnData, rowIndex, (int8_t*)&value);
+      break;
+    } 
+    case TSDB_DATA_TYPE_SMALLINT: {
+      int16_t value = (int16_t)strtoll(buf, NULL, 10);
+      colDataAppendInt16(pOut->columnData, rowIndex, (int16_t*)&value);
+      break;
+    } 
+    case TSDB_DATA_TYPE_INT: {
+      int32_t value = (int32_t)strtoll(buf, NULL, 10);
+      colDataAppendInt32(pOut->columnData, rowIndex, (int32_t*)&value);
+      break;
+    } 
+    case TSDB_DATA_TYPE_BIGINT: {
+      int64_t value = (int64_t)strtoll(buf, NULL, 10);
+      colDataAppendInt64(pOut->columnData, rowIndex, (int64_t*)&value);
+      break;
+    }   
+  }
 }
 
 static FORCE_INLINE void varToUnsigned(char *buf, SScalarParam* pOut, int32_t rowIndex) {
-  uint64_t value = strtoull(buf, NULL, 10);
-  colDataAppendInt64(pOut->columnData, rowIndex, (int64_t*) &value);
+  switch (pOut->columnData->info.type) {
+    case TSDB_DATA_TYPE_UTINYINT: {
+      uint8_t value = (uint8_t)strtoull(buf, NULL, 10);
+      colDataAppendInt8(pOut->columnData, rowIndex, (int8_t*)&value);
+      break;
+    } 
+    case TSDB_DATA_TYPE_USMALLINT: {
+      uint16_t value = (uint16_t)strtoull(buf, NULL, 10);
+      colDataAppendInt16(pOut->columnData, rowIndex, (int16_t*)&value);
+      break;
+    } 
+    case TSDB_DATA_TYPE_UINT: {
+      uint32_t value = (uint32_t)strtoull(buf, NULL, 10);
+      colDataAppendInt32(pOut->columnData, rowIndex, (int32_t*)&value);
+      break;
+    } 
+    case TSDB_DATA_TYPE_UBIGINT: {
+      uint64_t value = (uint64_t)strtoull(buf, NULL, 10);
+      colDataAppendInt64(pOut->columnData, rowIndex, (int64_t*)&value);
+      break;
+    }   
+  }
 }
 
 static FORCE_INLINE void varToFloat(char *buf, SScalarParam* pOut, int32_t rowIndex) {
@@ -453,6 +493,71 @@ void convertJsonValue(__compar_fn_t *fp, int32_t optr, int8_t typeLeft, int8_t t
   }
 }
 
+int32_t vectorConvertToVarData(const SScalarParam* pIn, SScalarParam* pOut, int16_t inType, int16_t outType) {
+  SColumnInfoData* pInputCol  = pIn->columnData;
+  SColumnInfoData* pOutputCol = pOut->columnData;
+  char tmp[128] = {0};
+
+  if (IS_SIGNED_NUMERIC_TYPE(inType) || inType == TSDB_DATA_TYPE_BOOL || inType == TSDB_DATA_TYPE_TIMESTAMP) {
+    for (int32_t i = 0; i < pIn->numOfRows; ++i) {
+      if (colDataIsNull_f(pInputCol->nullbitmap, i)) {
+        colDataAppendNULL(pOutputCol, i);
+        continue;
+      }
+      
+      int64_t value = 0;
+      GET_TYPED_DATA(value, int64_t, inType, colDataGetData(pInputCol, i));
+      int32_t len = sprintf(varDataVal(tmp), "%" PRId64, value);
+      varDataLen(tmp) = len;
+      if (outType == TSDB_DATA_TYPE_NCHAR) {
+        varToNchar(tmp, pOut, i);
+      } else {
+        colDataAppend(pOutputCol, i, (char *)&value, false);
+      }
+    }
+  } else if (IS_UNSIGNED_NUMERIC_TYPE(inType)) {
+    for (int32_t i = 0; i < pIn->numOfRows; ++i) {
+      if (colDataIsNull_f(pInputCol->nullbitmap, i)) {
+        colDataAppendNULL(pOutputCol, i);
+        continue;
+      }
+      
+      uint64_t value = 0;
+      GET_TYPED_DATA(value, uint64_t, inType, colDataGetData(pInputCol, i));
+      int32_t len = sprintf(varDataVal(tmp), "%" PRIu64, value);
+      varDataLen(tmp) = len;
+      if (outType == TSDB_DATA_TYPE_NCHAR) {
+        varToNchar(tmp, pOut, i);
+      } else {
+        colDataAppend(pOutputCol, i, (char *)&value, false);
+      }
+    }
+  } else if (IS_FLOAT_TYPE(inType)) {
+    for (int32_t i = 0; i < pIn->numOfRows; ++i) {
+      if (colDataIsNull_f(pInputCol->nullbitmap, i)) {
+        colDataAppendNULL(pOutputCol, i);
+        continue;
+      }
+      
+      double value = 0;
+      GET_TYPED_DATA(value, double, inType, colDataGetData(pInputCol, i));
+      int32_t len = sprintf(varDataVal(tmp), "%lf", value);
+      varDataLen(tmp) = len;
+      if (outType == TSDB_DATA_TYPE_NCHAR) {
+        varToNchar(tmp, pOut, i);
+      } else {
+        colDataAppend(pOutputCol, i, (char *)&value, false);
+      }
+    }
+  } else {
+    sclError("not supported input type:%d", inType);
+    return TSDB_CODE_QRY_APP_ERROR;
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+
 // TODO opt performance
 int32_t vectorConvertImpl(const SScalarParam* pIn, SScalarParam* pOut) {
   SColumnInfoData* pInputCol  = pIn->columnData;
@@ -610,6 +715,10 @@ int32_t vectorConvertImpl(const SScalarParam* pIn, SScalarParam* pOut) {
       }
       break;  
     }
+    case TSDB_DATA_TYPE_BINARY: 
+    case TSDB_DATA_TYPE_NCHAR: {
+      return vectorConvertToVarData(pIn, pOut, inType, outType);
+    }
     default:
       sclError("invalid convert output type:%d", outType);
       return TSDB_CODE_QRY_APP_ERROR;
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index 1470496c68..60af8c241c 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -94,6 +94,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MSG_NOT_PROCESSED,            "Message not processed
 TAOS_DEFINE_ERROR(TSDB_CODE_CFG_NOT_FOUND,                "Config not found")
 TAOS_DEFINE_ERROR(TSDB_CODE_REPEAT_INIT,                  "Repeat initialization")
 TAOS_DEFINE_ERROR(TSDB_CODE_DUP_KEY,                      "Cannot add duplicate keys to hash")
+TAOS_DEFINE_ERROR(TSDB_CODE_NEED_RETRY,                   "Retry needed")
 
 TAOS_DEFINE_ERROR(TSDB_CODE_REF_NO_MEMORY,                "Ref out of memory")
 TAOS_DEFINE_ERROR(TSDB_CODE_REF_FULL,                     "too many Ref Objs")
diff --git a/tests/script/api/batchprepare.c b/tests/script/api/batchprepare.c
index 99e546fcd0..beabb0c473 100644
--- a/tests/script/api/batchprepare.c
+++ b/tests/script/api/batchprepare.c
@@ -11,7 +11,7 @@
 
 int32_t shortColList[] = {TSDB_DATA_TYPE_TIMESTAMP, TSDB_DATA_TYPE_INT};
 int32_t fullColList[] = {TSDB_DATA_TYPE_TIMESTAMP, TSDB_DATA_TYPE_BOOL, TSDB_DATA_TYPE_TINYINT, TSDB_DATA_TYPE_UTINYINT, TSDB_DATA_TYPE_SMALLINT, TSDB_DATA_TYPE_USMALLINT, TSDB_DATA_TYPE_INT, TSDB_DATA_TYPE_UINT, TSDB_DATA_TYPE_BIGINT, TSDB_DATA_TYPE_UBIGINT, TSDB_DATA_TYPE_FLOAT, TSDB_DATA_TYPE_DOUBLE, TSDB_DATA_TYPE_BINARY, TSDB_DATA_TYPE_NCHAR};
-int32_t bindColTypeList[] = {TSDB_DATA_TYPE_TIMESTAMP, TSDB_DATA_TYPE_SMALLINT, TSDB_DATA_TYPE_DOUBLE};
+int32_t bindColTypeList[] = {TSDB_DATA_TYPE_TIMESTAMP, TSDB_DATA_TYPE_SMALLINT, TSDB_DATA_TYPE_NCHAR};
 int32_t optrIdxList[] = {0, 1, 2};
 
 typedef struct {
@@ -235,7 +235,7 @@ CaseCtrl gCaseCtrl = {  // query case with specified col&oper
   .bindColTypeList = NULL,
   .optrIdxListNum = 0,
   .optrIdxList = NULL,
-  .checkParamNum = true,
+  .checkParamNum = false,
   .printRes = true,
   .runTimes = 0,
   .caseRunIdx = -1,
@@ -795,7 +795,7 @@ int32_t prepareQueryCondData(BindData *data, int32_t tblIdx) {
     }
   }
 
-  generateQuerySQL(data, tblIdx);
+  generateQueryCondSQL(data, tblIdx);
   
   return 0;
 }