diff --git a/include/libs/nodes/plannodes.h b/include/libs/nodes/plannodes.h
index 38a179869f603aaaedc71a3b3f0108075ddfcde4..b07e8f39d5bcae86ebd32208613f98c7e2bff497 100644
--- a/include/libs/nodes/plannodes.h
+++ b/include/libs/nodes/plannodes.h
@@ -106,6 +106,9 @@ typedef struct SInterpFuncLogicNode {
   SNodeList*  pFuncs;
   STimeWindow timeRange;
   int64_t     interval;
+  EFillMode   fillMode;
+  SNode*      pFillValues;  // SNodeListNode
+  SNode*      pTimeSeries;  // SColumnNode
 } SInterpFuncLogicNode;
 
 typedef enum EModifyTableType { MODIFY_TABLE_TYPE_INSERT = 1, MODIFY_TABLE_TYPE_DELETE } EModifyTableType;
@@ -309,6 +312,9 @@ typedef struct SInterpFuncPhysiNode {
   SNodeList*  pFuncs;
   STimeWindow timeRange;
   int64_t     interval;
+  EFillMode   fillMode;
+  SNode*      pFillValues;  // SNodeListNode
+  SNode*      pTimeSeries;  // SColumnNode
 } SInterpFuncPhysiNode;
 
 typedef struct SJoinPhysiNode {
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index fde016375be764a286c96828d1f95e35ecc333d8..9fb9bcebf7b8ae731b616bc5b151455e248230e7 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -564,6 +564,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_PAR_STREAM_NOT_ALLOWED_FUNC   TAOS_DEF_ERROR_CODE(0, 0x265A)
 #define TSDB_CODE_PAR_GROUP_BY_NOT_ALLOWED_FUNC TAOS_DEF_ERROR_CODE(0, 0x265B)
 #define TSDB_CODE_PAR_INVALID_TABLE_OPTION      TAOS_DEF_ERROR_CODE(0, 0x265C)
+#define TSDB_CODE_PAR_INVALID_INTERP_CLAUSE     TAOS_DEF_ERROR_CODE(0, 0x265D)
 
 //planner
 #define TSDB_CODE_PLAN_INTERNAL_ERROR           TAOS_DEF_ERROR_CODE(0, 0x2700)
diff --git a/source/libs/nodes/src/nodesCloneFuncs.c b/source/libs/nodes/src/nodesCloneFuncs.c
index b12f910cb1273f7d517ff100981164b03898e5f6..5eaca60ea5d8c9f9439a7b9139789622ecad7dbf 100644
--- a/source/libs/nodes/src/nodesCloneFuncs.c
+++ b/source/libs/nodes/src/nodesCloneFuncs.c
@@ -464,6 +464,9 @@ static SNode* logicInterpFuncCopy(const SInterpFuncLogicNode* pSrc, SInterpFuncL
   CLONE_NODE_LIST_FIELD(pFuncs);
   COPY_OBJECT_FIELD(timeRange, sizeof(STimeWindow));
   COPY_SCALAR_FIELD(interval);
+  COPY_SCALAR_FIELD(fillMode);
+  CLONE_NODE_FIELD(pFillValues);
+  CLONE_NODE_FIELD(pTimeSeries);
   return (SNode*)pDst;
 }
 
diff --git a/source/libs/nodes/src/nodesCodeFuncs.c b/source/libs/nodes/src/nodesCodeFuncs.c
index 57d1ee78573eee8807d1e33bdd1f3f1f42e06d54..bde5159087634a2ad06b6b4a1e38ff06f7a32948 100644
--- a/source/libs/nodes/src/nodesCodeFuncs.c
+++ b/source/libs/nodes/src/nodesCodeFuncs.c
@@ -2133,6 +2133,9 @@ static const char* jkInterpFuncPhysiPlanFuncs = "Funcs";
 static const char* jkInterpFuncPhysiPlanStartTime = "StartTime";
 static const char* jkInterpFuncPhysiPlanEndTime = "EndTime";
 static const char* jkInterpFuncPhysiPlanInterval = "Interval";
+static const char* jkInterpFuncPhysiPlanFillMode = "FillMode";
+static const char* jkInterpFuncPhysiPlanFillValues = "FillValues";
+static const char* jkInterpFuncPhysiPlanTimeSeries = "TimeSeries";
 
 static int32_t physiInterpFuncNodeToJson(const void* pObj, SJson* pJson) {
   const SInterpFuncPhysiNode* pNode = (const SInterpFuncPhysiNode*)pObj;
@@ -2153,6 +2156,15 @@ static int32_t physiInterpFuncNodeToJson(const void* pObj, SJson* pJson) {
   if (TSDB_CODE_SUCCESS == code) {
     code = tjsonAddIntegerToObject(pJson, jkInterpFuncPhysiPlanInterval, pNode->interval);
   }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkInterpFuncPhysiPlanFillMode, pNode->fillMode);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkInterpFuncPhysiPlanFillValues, nodeToJson, pNode->pFillValues);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkInterpFuncPhysiPlanTimeSeries, nodeToJson, pNode->pTimeSeries);
+  }
 
   return code;
 }
@@ -2176,6 +2188,15 @@ static int32_t jsonToPhysiInterpFuncNode(const SJson* pJson, void* pObj) {
   if (TSDB_CODE_SUCCESS == code) {
     code = tjsonGetBigIntValue(pJson, jkInterpFuncPhysiPlanInterval, &pNode->interval);
   }
+  if (TSDB_CODE_SUCCESS == code) {
+    tjsonGetNumberValue(pJson, jkInterpFuncPhysiPlanFillMode, pNode->fillMode, code);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeObject(pJson, jkInterpFuncPhysiPlanFillValues, &pNode->pFillValues);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeObject(pJson, jkInterpFuncPhysiPlanTimeSeries, &pNode->pTimeSeries);
+  }
 
   return code;
 }
diff --git a/source/libs/parser/src/parAstCreater.c b/source/libs/parser/src/parAstCreater.c
index 6b3fdad27d38eba5046eb50d889a13c1bd0f106b..ccb0d37da65a6be158dfb0295815151bb3ce36f1 100644
--- a/source/libs/parser/src/parAstCreater.c
+++ b/source/libs/parser/src/parAstCreater.c
@@ -700,8 +700,11 @@ SNode* addEveryClause(SAstCreateContext* pCxt, SNode* pStmt, SNode* pEvery) {
 
 SNode* addFillClause(SAstCreateContext* pCxt, SNode* pStmt, SNode* pFill) {
   CHECK_PARSER_STATUS(pCxt);
-  if (QUERY_NODE_SELECT_STMT == nodeType(pStmt)) {
-    ((SSelectStmt*)pStmt)->pFill = pFill;
+  if (QUERY_NODE_SELECT_STMT == nodeType(pStmt) && NULL != pFill) {
+    SFillNode* pFillClause = (SFillNode*)pFill;
+    nodesDestroyNode(pFillClause->pWStartTs);
+    pFillClause->pWStartTs = createPrimaryKeyCol(pCxt);
+    ((SSelectStmt*)pStmt)->pFill = (SNode*)pFillClause;
   }
   return pStmt;
 }
@@ -909,7 +912,7 @@ SNode* createDefaultTableOptions(SAstCreateContext* pCxt) {
   pOptions->watermark1 = TSDB_DEFAULT_ROLLUP_WATERMARK;
   pOptions->watermark2 = TSDB_DEFAULT_ROLLUP_WATERMARK;
   pOptions->ttl = TSDB_DEFAULT_TABLE_TTL;
-  pOptions->commentNull = true;    // mark null
+  pOptions->commentNull = true;  // mark null
   return (SNode*)pOptions;
 }
 
@@ -918,7 +921,7 @@ SNode* createAlterTableOptions(SAstCreateContext* pCxt) {
   STableOptions* pOptions = (STableOptions*)nodesMakeNode(QUERY_NODE_TABLE_OPTIONS);
   CHECK_OUT_OF_MEM(pOptions);
   pOptions->ttl = -1;
-  pOptions->commentNull = true;    // mark null
+  pOptions->commentNull = true;  // mark null
   return (SNode*)pOptions;
 }
 
@@ -940,9 +943,9 @@ SNode* setTableOption(SAstCreateContext* pCxt, SNode* pOptions, ETableOptionType
     case TABLE_OPTION_ROLLUP:
       ((STableOptions*)pOptions)->pRollupFuncs = pVal;
       break;
-    case TABLE_OPTION_TTL:{
+    case TABLE_OPTION_TTL: {
       int64_t ttl = taosStr2Int64(((SToken*)pVal)->z, NULL, 10);
-      if (ttl > INT32_MAX){
+      if (ttl > INT32_MAX) {
         ttl = INT32_MAX;
       }
       // ttl can not be smaller than 0, because there is a limitation in sql.y (TTL NK_INTEGER)
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 77ef9027cdc6f49651653eb3744d6091dbcdaea7..a60dba3a9a46a81a0a20dd98397dc83593e59468 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -1932,26 +1932,33 @@ static int32_t getFillTimeRange(STranslateContext* pCxt, SNode* pWhere, STimeWin
   return code;
 }
 
-static int32_t checkFill(STranslateContext* pCxt, SIntervalWindowNode* pInterval) {
-  SFillNode* pFill = (SFillNode*)pInterval->pFill;
+static int32_t checkFill(STranslateContext* pCxt, SFillNode* pFill, SValueNode* pInterval) {
+  if (FILL_MODE_NONE == pFill->mode) {
+    return TSDB_CODE_SUCCESS;
+  }
+
   if (TSWINDOW_IS_EQUAL(pFill->timeRange, TSWINDOW_INITIALIZER) ||
       TSWINDOW_IS_EQUAL(pFill->timeRange, TSWINDOW_DESC_INITIALIZER)) {
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_FILL_TIME_RANGE);
   }
 
-  int64_t     timeRange = TABS(pFill->timeRange.skey - pFill->timeRange.ekey);
-  int64_t     intervalRange = 0;
-  SValueNode* pInter = (SValueNode*)pInterval->pInterval;
-  if (TIME_IS_VAR_DURATION(pInter->unit)) {
+  // interp FILL clause
+  if (NULL == pInterval) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  int64_t timeRange = TABS(pFill->timeRange.skey - pFill->timeRange.ekey);
+  int64_t intervalRange = 0;
+  if (TIME_IS_VAR_DURATION(pInterval->unit)) {
     int64_t f = 1;
-    if (pInter->unit == 'n') {
+    if (pInterval->unit == 'n') {
       f = 30L * MILLISECOND_PER_DAY;
-    } else if (pInter->unit == 'y') {
+    } else if (pInterval->unit == 'y') {
       f = 365L * MILLISECOND_PER_DAY;
     }
-    intervalRange = pInter->datum.i * f;
+    intervalRange = pInterval->datum.i * f;
   } else {
-    intervalRange = pInter->datum.i;
+    intervalRange = pInterval->datum.i;
   }
   if ((timeRange == 0) || (timeRange / intervalRange) >= MAX_INTERVAL_TIME_WINDOW) {
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_FILL_TIME_RANGE);
@@ -1967,7 +1974,7 @@ static int32_t translateFill(STranslateContext* pCxt, SNode* pWhere, SIntervalWi
 
   int32_t code = getFillTimeRange(pCxt, pWhere, &(((SFillNode*)pInterval->pFill)->timeRange));
   if (TSDB_CODE_SUCCESS == code) {
-    code = checkFill(pCxt, pInterval);
+    code = checkFill(pCxt, (SFillNode*)pInterval->pFill, (SValueNode*)pInterval->pInterval);
   }
   return code;
 }
@@ -2109,6 +2116,64 @@ static int32_t translateWindow(STranslateContext* pCxt, SSelectStmt* pSelect) {
   return code;
 }
 
+static int32_t createDefaultFillNode(STranslateContext* pCxt, SNode** pOutput) {
+  SFillNode* pFill = (SFillNode*)nodesMakeNode(QUERY_NODE_FILL);
+  if (NULL == pFill) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+
+  pFill->mode = FILL_MODE_NONE;
+
+  SColumnNode* pCol = (SColumnNode*)nodesMakeNode(QUERY_NODE_COLUMN);
+  if (NULL == pCol) {
+    nodesDestroyNode((SNode*)pFill);
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  pCol->colId = PRIMARYKEY_TIMESTAMP_COL_ID;
+  strcpy(pCol->colName, PK_TS_COL_INTERNAL_NAME);
+  pFill->pWStartTs = (SNode*)pCol;
+
+  *pOutput = (SNode*)pFill;
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t translateInterpFill(STranslateContext* pCxt, SSelectStmt* pSelect) {
+  int32_t code = TSDB_CODE_SUCCESS;
+
+  if (NULL == pSelect->pFill) {
+    code = createDefaultFillNode(pCxt, &pSelect->pFill);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = translateExpr(pCxt, &pSelect->pFill);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = getFillTimeRange(pCxt, pSelect->pRange, &(((SFillNode*)pSelect->pFill)->timeRange));
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = checkFill(pCxt, (SFillNode*)pSelect->pFill, (SValueNode*)pSelect->pEvery);
+  }
+
+  return code;
+}
+
+static int32_t translateInterp(STranslateContext* pCxt, SSelectStmt* pSelect) {
+  if (!pSelect->hasInterpFunc) {
+    if (NULL != pSelect->pRange || NULL != pSelect->pEvery || NULL != pSelect->pFill) {
+      return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_INTERP_CLAUSE);
+    }
+    return TSDB_CODE_SUCCESS;
+  }
+
+  int32_t code = translateExpr(pCxt, &pSelect->pRange);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = translateExpr(pCxt, &pSelect->pEvery);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = translateInterpFill(pCxt, pSelect);
+  }
+  return code;
+}
+
 static int32_t translatePartitionBy(STranslateContext* pCxt, SNodeList* pPartitionByList) {
   pCxt->currClause = SQL_CLAUSE_PARTITION_BY;
   return translateExprList(pCxt, pPartitionByList);
@@ -2378,6 +2443,9 @@ static int32_t translateSelect(STranslateContext* pCxt, SSelectStmt* pSelect) {
   if (TSDB_CODE_SUCCESS == code) {
     code = checkLimit(pCxt, pSelect);
   }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = translateInterp(pCxt, pSelect);
+  }
   if (TSDB_CODE_SUCCESS == code) {
     code = rewriteUniqueStmt(pCxt, pSelect);
   }
@@ -3388,18 +3456,18 @@ static int32_t buildCreateStbReq(STranslateContext* pCxt, SCreateTableStmt* pStm
   pReq->delay2 = pStmt->pOptions->maxDelay2;
   pReq->watermark1 = pStmt->pOptions->watermark1;
   pReq->watermark2 = pStmt->pOptions->watermark2;
-//  pReq->ttl = pStmt->pOptions->ttl;
+  //  pReq->ttl = pStmt->pOptions->ttl;
   columnDefNodeToField(pStmt->pCols, &pReq->pColumns);
   columnDefNodeToField(pStmt->pTags, &pReq->pTags);
   pReq->numOfColumns = LIST_LENGTH(pStmt->pCols);
   pReq->numOfTags = LIST_LENGTH(pStmt->pTags);
-  if(pStmt->pOptions->commentNull == false){
+  if (pStmt->pOptions->commentNull == false) {
     pReq->comment = strdup(pStmt->pOptions->comment);
     if (NULL == pReq->comment) {
       return TSDB_CODE_OUT_OF_MEMORY;
     }
     pReq->commentLen = strlen(pStmt->pOptions->comment);
-  }else{
+  } else {
     pReq->commentLen = -1;
   }
 
@@ -3452,14 +3520,14 @@ static int32_t buildAlterSuperTableReq(STranslateContext* pCxt, SAlterTableStmt*
   pAlterReq->alterType = pStmt->alterType;
 
   if (TSDB_ALTER_TABLE_UPDATE_OPTIONS == pStmt->alterType) {
-//    pAlterReq->ttl = pStmt->pOptions->ttl;
+    //    pAlterReq->ttl = pStmt->pOptions->ttl;
     if (pStmt->pOptions->commentNull == false) {
       pAlterReq->comment = strdup(pStmt->pOptions->comment);
       if (NULL == pAlterReq->comment) {
         return TSDB_CODE_OUT_OF_MEMORY;
       }
       pAlterReq->commentLen = strlen(pStmt->pOptions->comment);
-    }else{
+    } else {
       pAlterReq->commentLen = -1;
     }
 
@@ -4725,7 +4793,7 @@ static int32_t buildNormalTableBatchReq(int32_t acctId, const SCreateTableStmt*
       return TSDB_CODE_OUT_OF_MEMORY;
     }
     req.commentLen = strlen(pStmt->pOptions->comment);
-  }else{
+  } else {
     req.commentLen = -1;
   }
   req.ntb.schemaRow.nCols = LIST_LENGTH(pStmt->pCols);
@@ -4878,11 +4946,11 @@ static void addCreateTbReqIntoVgroup(int32_t acctId, SHashObj* pVgroupHashmap, S
   struct SVCreateTbReq req = {0};
   req.type = TD_CHILD_TABLE;
   req.name = strdup(pStmt->tableName);
-  req.ttl  = pStmt->pOptions->ttl;
+  req.ttl = pStmt->pOptions->ttl;
   if (pStmt->pOptions->commentNull == false) {
     req.comment = strdup(pStmt->pOptions->comment);
     req.commentLen = strlen(pStmt->pOptions->comment);
-  } else{
+  } else {
     req.commentLen = -1;
   }
   req.ctb.suid = suid;
@@ -5460,15 +5528,14 @@ static int32_t buildUpdateOptionsReq(STranslateContext* pCxt, SAlterTableStmt* p
     pReq->newTTL = pStmt->pOptions->ttl;
   }
 
-  if (TSDB_CODE_SUCCESS == code){
-    if(pStmt->pOptions->commentNull == false) {
+  if (TSDB_CODE_SUCCESS == code) {
+    if (pStmt->pOptions->commentNull == false) {
       pReq->newComment = strdup(pStmt->pOptions->comment);
       if (NULL == pReq->newComment) {
         code = TSDB_CODE_OUT_OF_MEMORY;
       }
       pReq->newCommentLen = strlen(pReq->newComment);
-    }
-    else{
+    } else {
       pReq->newCommentLen = -1;
     }
   }
diff --git a/source/libs/parser/src/parUtil.c b/source/libs/parser/src/parUtil.c
index 95cdf58d5a5bc3d6e02e0bf67154839562d4a6e5..d94b430c452a0e131a1ef91f836615dad90bddaa 100644
--- a/source/libs/parser/src/parUtil.c
+++ b/source/libs/parser/src/parUtil.c
@@ -196,6 +196,8 @@ static char* getSyntaxErrFormat(int32_t errCode) {
       return "%s function does not supportted in group query";
     case TSDB_CODE_PAR_INVALID_TABLE_OPTION:
       return "Invalid option %s";
+    case TSDB_CODE_PAR_INVALID_INTERP_CLAUSE:
+      return "Invalid usage of RANGE clause, EVERY clause or FILL clause";
     case TSDB_CODE_OUT_OF_MEMORY:
       return "Out of memory";
     default:
diff --git a/source/libs/parser/test/parSelectTest.cpp b/source/libs/parser/test/parSelectTest.cpp
index 693c422ae0bfd38da6fc69f33430aa46874278e5..11e09cd83d89f5ba02df18f5a439786ffe6d83c0 100644
--- a/source/libs/parser/test/parSelectTest.cpp
+++ b/source/libs/parser/test/parSelectTest.cpp
@@ -267,8 +267,6 @@ TEST_F(ParserSelectTest, interp) {
 
   run("SELECT INTERP(c1) FROM t1 EVERY(5s)");
 
-  run("SELECT INTERP(c1) FROM t1 EVERY(5s) FILL(LINEAR)");
-
   run("SELECT INTERP(c1) FROM t1 RANGE('2017-7-14 18:00:00', '2017-7-14 19:00:00') EVERY(5s)");
 
   run("SELECT INTERP(c1) FROM t1 RANGE('2017-7-14 18:00:00', '2017-7-14 19:00:00') EVERY(5s) FILL(LINEAR)");
diff --git a/source/libs/planner/src/planLogicCreater.c b/source/libs/planner/src/planLogicCreater.c
index b365afff02875114b4b61c598e6095c7ff4aab66..c7490faa0c28524830f16515e2eb16278b894706 100644
--- a/source/libs/planner/src/planLogicCreater.c
+++ b/source/libs/planner/src/planLogicCreater.c
@@ -508,10 +508,15 @@ static int32_t createInterpFuncLogicNode(SLogicPlanContext* pCxt, SSelectStmt* p
     code = rewriteExprsForSelect(pInterpFunc->pFuncs, pSelect, SQL_CLAUSE_SELECT);
   }
 
-  if (TSDB_CODE_SUCCESS == code && NULL != pSelect->pRange) {
-    // SRangeNode* pRange = (SRangeNode*)pSelect->pRange;
-    // pInterpFunc->timeRange.skey = ((SValueNode*)pRange->pStart)->datum.i;
-    // pInterpFunc->timeRange.ekey = ((SValueNode*)pRange->pEnd)->datum.i;
+  if (TSDB_CODE_SUCCESS == code && NULL != pSelect->pFill) {
+    SFillNode* pFill = (SFillNode*)pSelect->pFill;
+    pInterpFunc->timeRange = pFill->timeRange;
+    pInterpFunc->fillMode = pFill->mode;
+    pInterpFunc->pTimeSeries = nodesCloneNode(pFill->pWStartTs);
+    pInterpFunc->pFillValues = nodesCloneNode(pFill->pValues);
+    if (NULL == pInterpFunc->pTimeSeries || (NULL != pFill->pValues && NULL == pInterpFunc->pFillValues)) {
+      code = TSDB_CODE_OUT_OF_MEMORY;
+    }
   }
 
   if (TSDB_CODE_SUCCESS == code && NULL != pSelect->pEvery) {
diff --git a/source/libs/planner/src/planPhysiCreater.c b/source/libs/planner/src/planPhysiCreater.c
index 70a8aca8bd2aa1f7968284ed98556a94ca368c62..6af5a15147b4805eec1c374020cdb93c1f67abf8 100644
--- a/source/libs/planner/src/planPhysiCreater.c
+++ b/source/libs/planner/src/planPhysiCreater.c
@@ -877,6 +877,12 @@ static int32_t createInterpFuncPhysiNode(SPhysiPlanContext* pCxt, SNodeList* pCh
   if (TSDB_CODE_SUCCESS == code) {
     pInterpFunc->timeRange = pFuncLogicNode->timeRange;
     pInterpFunc->interval = pFuncLogicNode->interval;
+    pInterpFunc->fillMode = pFuncLogicNode->fillMode;
+    pInterpFunc->pFillValues = nodesCloneNode(pFuncLogicNode->pFillValues);
+    pInterpFunc->pTimeSeries = nodesCloneNode(pFuncLogicNode->pTimeSeries);
+    if (NULL == pInterpFunc->pTimeSeries || (NULL != pFuncLogicNode->pFillValues && NULL == pInterpFunc->pFillValues)) {
+      code = TSDB_CODE_OUT_OF_MEMORY;
+    }
   }
 
   if (TSDB_CODE_SUCCESS == code) {