diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 17484fa88fad3a450bd39a7ad71c0af44e5818c9..85146cb0223fdc3fcb4e1ee39ed74bb424ed74b3 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -6388,6 +6388,7 @@ static bool doEveryInterpolation(SOperatorInfo* pOperatorInfo, SSDataBlock* pBlo
   for (int32_t i = 1; i < pOperatorInfo->numOfOutput; ++i) {
     assert(pEveryInfo->binfo.pCtx[i].functionId == TSDB_FUNC_INTERP 
         || pEveryInfo->binfo.pCtx[i].functionId == TSDB_FUNC_TS_DUMMY
+        || pEveryInfo->binfo.pCtx[i].functionId == TSDB_FUNC_TAG
         || pEveryInfo->binfo.pCtx[i].functionId == TSDB_FUNC_TAG_DUMMY);
 
     if (pEveryInfo->binfo.pCtx[i].functionId == TSDB_FUNC_INTERP) {